docs(readme): simplify and restructure documentation

* Streamlines feature descriptions for clarity and brevity
* Reorganizes sections to improve navigation and developer onboarding
* Moves developer and project origin info into new sections
* Removes redundant details and outdated contact instructions

Improves overall readability and accessibility for both users and contributors.

Author: saturneric

README.md

@@ -7,75 +7,47 @@
 [![Build Nightly](https://github.com/saturneric/GpgFrontend/actions/workflows/testing-nightly.yml/badge.svg?branch=develop)](https://github.com/saturneric/GpgFrontend/actions/workflows/testing-nightly.yml)
 [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/saturneric/GpgFrontend)
 
-A modern Enigma built on [GnuPG](https://www.gnupg.org/). It brings clarity,
-security, and trust to everyday encryption.
+A modern "Enigma" built on [GnuPG](https://www.gnupg.org/). It brings easy and
+trustworthy to your privacy life.
 
 <img width="100" height="100" align="right" style="position: absolute;right: 0;padding: 12px;top:12px;z-index: 1000;" src="https://image.cdn.bktus.com/i/2024/02/24/248b2e18-a120-692e-e6bc-42ca30be9011.webp" alt="GpgFrontend"/>
 
-**Key Features:**
-
-- One-click encryption and signing: Quickly encrypt, decrypt and digitally sign
-  texts, files and emails
-- Easy installation: Available via Homebrew, Flatpak, GitHub Releases, winget,
-  AUR, Microsoft Store and more
-- True cross-platform experience: Native support for Windows, macOS and Linux;
-  can also be built on FreeBSD
-- Fully portable: Run directly from a USB drive and move keys and settings
-  between Windows and Linux without hassle
-- Secure key transfer: Safely migrate your keys and configurations across
-  devices
-- Multiple independent key databases: Manage keys and identities separately for
-  different roles, projects or teams
-- Comprehensive algorithm support: Includes RSA, DSA, EdDSA, ECDSA (NIST,
-  Brainpool), ECDH and other algorithms via the latest GnuPG
-
-> If you appreciate GpgFrontend, just give it a ⭐ on GitHub: it’s like adopting
-> your own little digital Enigma.
+**Key Features**
+
+- Easy: Encrypt and sign your texts, files and more.
+- Cross-platform: Native support for Windows, macOS and Linux.
+- Portable: Run directly from a USB drive and carry your keys.
+- Flexible: Manage keys separately through multiple key databases.
+- Privacy-focused: Using multiple approaches to enhance safety.
+
+> If you like GpgFrontend, you can give it a ⭐ on GitHub as donation. :)
 
 ## Table of Contents
 
 - [GpgFrontend](#gpgfrontend)
   - [Table of Contents](#table-of-contents)
   - [User Manual](#user-manual)
-  - [Developer Wiki](#developer-wiki)
-  - [Language Support](#language-support)
-    - [Supported Languages](#supported-languages)
+  - [Supported Languages](#supported-languages)
   - [Modules](#modules)
-    - [Mission and Origins](#mission-and-origins)
-  - [Contact](#contact)
   - [Contributing \& Bugs Report](#contributing--bugs-report)
-    - [Quick Start with GitHub Codespaces](#quick-start-with-github-codespaces)
-  - [Project Maintainer](#project-maintainer)
+    - [For Developers](#for-developers)
   - [Project's Logo](#projects-logo)
+  - [Mission and Origins](#mission-and-origins)
+  - [Project Maintainer](#project-maintainer)
   - [LICENSES](#licenses)
 
 ## User Manual
 
 For detailed instructions on installation, usage, and troubleshooting, please
-refer to the official [User
-Manual](https://www.gpgfrontend.bktus.com/overview/glance). The User Manual is
-the primary and most up-to-date resource for all users. It provides
-comprehensive guidance beyond what is found in the README, ensuring you have the
-latest information and best practices.
+refer to the [User Manual](https://www.gpgfrontend.bktus.com/overview/glance).
+The User Manual is the primary and most up-to-date resource for all users. It
+provides guidance beyond what is found in the README, ensuring you have the best
+practices.
 
 The source code for the user manual is maintained in this
 [repository](https://github.com/saturneric/GpgFrontend-Manual.git).
 
-## Developer Wiki
-
-[An AI-assisted Wiki](https://deepwiki.com/saturneric/GpgFrontend) has been
-generated through automated analysis of the GpgFrontend source code. This Wiki
-offers a comprehensive overview of the project’s technical architecture, design
-principles, and major components. It serves as a valuable resource for developers
-looking to understand the inner workings of GpgFrontend.
-
-## Language Support
-
-If you find an error in any of the translations or need to add a new one, we
-welcome you to [join our translation
-work](https://www.gpgfrontend.bktus.com/appendix/translate-interface).
-
-### Supported Languages
+## Supported Languages
 
 GpgFrontend currently supports an array of languages including:
 
@@ -84,9 +56,14 @@ GpgFrontend currently supports an array of languages including:
 - French
 - German
 - Italian
+- Spanish
 
 Contributors: [SHOW](TRANSLATORS)
 
+If you find an error in any of the translations or need to add a new one, we
+welcome you to [join our translation
+work](https://www.gpgfrontend.bktus.com/appendix/translate-interface).
+
 ## Modules
 
 GpgFrontend supports extensive module development, allowing users to customize
@@ -96,32 +73,6 @@ for guidance [Module
 Repository](https://github.com/saturneric/GpgFrontend-Modules.git) to reach a
 broader audience.
 
-### Mission and Origins
-
-GpgFrontend draws its inspiration and core philosophy from the stable, portable,
-and cross-platform **[gpg4usb](https://git.bktus.com/gpgfrontend/gpg4usb/)**
-project. Inheriting the spirit of true portability and platform independence,
-GpgFrontend builds on this foundation to deliver advanced features, modern
-cryptographic standards, and a clean, intuitive user experience.
-
-As described in the article _[“The Past and Present of GpgFrontend: My Journey
-with an Open-Source Encryption
-Tool”](https://blog.bktus.com/en/archives/u8hywl/)_, the project began with a
-simple question:
-
-> “What if everyone could have a small, reliable, and secure ‘crypto machine’—a
-> tool that makes encryption as tangible and trustworthy as turning a key in a
-> lock?”
-
-That idea became the cornerstone of GpgFrontend’s mission: **to make OpenPGP
-encryption truly accessible—simple, robust, and convenient for everyone, on any
-major operating system.**
-
-## Contact
-
-Please refer to [HERE](https://www.gpgfrontend.bktus.com/overview/contact) for
-my contact details.
-
 ## Contributing & Bugs Report
 
 Feel free to dive in! [Open an
@@ -132,28 +83,41 @@ to register, you are welcome to communicate with me via email.
 
 [Contributing Guide](https://www.gpgfrontend.bktus.com/appendix/contribute)
 
-### Quick Start with GitHub Codespaces
+### For Developers
 
-[![Open in GitHub
-Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/saturneric/GpgFrontend)
+GpgFrontend's architecture and design is not easy for starters, especially for
+developers who are not familiar with c++, qt and multi-threading. I was
+struggling hard for these in the past years as well. [An AI-assisted
+Wiki](https://deepwiki.com/saturneric/GpgFrontend) has been created through
+analysis of the GpgFrontend source code. This Wiki offers a comprehensive
+overview of the project’s technical architecture, design principles, and major
+components. I'd checked it and I would say that it can be of great help.
 
-With just one click, you can quickly launch a fully configured development
-environment in GitHub Codespaces.
+For setting up the development environment, please refer to the [Development
+Environment Setup Guide](https://gpgfrontend.bktus.com/appendix/setup-dev-env).
 
-## Project Maintainer
+## Project's Logo
 
-[@Saturneric](https://github.com/saturneric)
+<img width="256" height="256" src="https://image.cdn.bktus.com/i/2024/02/24/f3f2f26a-96b4-65eb-960f-7ac3397a0a40.webp" alt="Logo"/>
 
-I’m always eager to hear your suggestions for improvement. My goal is to
-continuously enhance the usability of GpgFrontend and address critical issues
-effectively. Your feedback is highly valued and has a great chance of being
-implemented in the next release. Feel free to share your ideas and insights via
-Issues, email, or any other convenient method. Together, we can make GpgFrontend
-even better!
+## Mission and Origins
 
-## Project's Logo
+GpgFrontend inherits the codebase from the discontinued but easy-to-use
+**[gpg4usb](https://git.bktus.com/gpgfrontend/gpg4usb/)**. As described in my
+blog post _[“The Past and Present of GpgFrontend: My Journey with an Open-Source
+Encryption Tool”](https://blog.bktus.com/en/archives/u8hywl/)_, the project
+began with a simple question:
 
-<img width="256" height="256" src="https://image.cdn.bktus.com/i/2024/02/24/f3f2f26a-96b4-65eb-960f-7ac3397a0a40.webp" alt="Logo"/>
+> “What if everyone could have a small, reliable, and secure ‘crypto machine’. A
+> tool that makes encryption as tangible and trustworthy as turning a key in a
+> lock?”
+
+## Project Maintainer
+
+[@Saturneric](https://github.com/saturneric)
+
+You can refer to [HERE](https://www.gpgfrontend.bktus.com/overview/contact) for
+my contact details.
 
 ## LICENSES