Update README.md

[avnionur]

This pull request includes significant updates to the profile/README.md file, enhancing the presentation and providing more detailed information about the PiA Group. The changes include adding new visual elements, updating the "About Us" section, and expanding on the services and values of the organization.

Key changes:

• Visual Enhancements:

  • Added the PiA logo and a cover image to the README.
  • Introduced LinkedIn and Website badges for quick access.

• Content Updates:

  • Revised the "About Us" section to provide a more comprehensive overview of PiA, including office locations and key statistics.
  • Detailed the services offered by PiA, such as Turn-key Solutions, Digital Transformation, and Application Development.

• Platform and Values:

  • Added a new section about the DNext Platform, highlighting its features and benefits.
  • Listed the core values of PiA, emphasizing their commitment to quality and innovation.

• Industry Recognition and Contact Information:

  • Mentioned PiA's membership in the TM Forum, a global alliance of telco and tech companies. (F7e9b98cL

[avnionur]

@alpayozt