Add tool for converting SVGs to PNGs

The SVGs need to be properly sized, i.e. have the right dimensions
for when they are to be included in the Markdown document.
We are also changing to PNGs from SVGs in this commit
since VSCE does not allow for vector graphics in extensions.

Author: gnikit

README.md

@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="assets/svg/modern-fortran-logo.svg" width=800/>
+  <img src="assets/png/modern-fortran-logo.png" width=800/>
 </p>
 
 <div align="center">
@@ -43,18 +43,18 @@
 
 ## Get Started & Seek Support
 
-<p float="left">
-  <a href="https://fortran-lang.org/learn/"><img src="./assets/svg/readme.tutorial.svg"/></a>
-  <a href="https://github.com/fortran-lang/vscode-fortran-support/discussions"><img src="./assets/svg/readme.github.svg"/></a>
-  <a href="https://fortran-lang.discourse.group/"><img src="./assets/svg/readme.discourse.svg"/></a>
+<p float="center">
+  <a href="https://fortran-lang.org/learn/"><img src="assets/png/readme.tutorial.png"/></a>
+  <a href="https://github.com/fortran-lang/vscode-fortran-support/discussions"><img src="assets/png/readme.github.png"/></a>
+  <a href="https://fortran-lang.discourse.group/"><img src="assets/png/readme.discourse.png"/></a>
 </p>
 
 ### Useful Tools
 
 <p float="center">
-  <a href="https://gnikit.github.io/fortls"><img src="./assets/svg/readme.fortls.svg"/></a>
-  <a href="https://fpm.fortran-lang.org"><img src="./assets/svg/readme.fpm.svg"/></a>
-  <a href="https://github.com/fortran-lang/stdlib"><img src="./assets/svg/readme.stdlib.svg"/></a>
+  <a href="https://gnikit.github.io/fortls"><img src="assets/png/readme.fortls.png"/></a>
+  <a href="https://fpm.fortran-lang.org"><img src="assets/png/readme.fpm.png"/></a>
+  <a href="https://github.com/fortran-lang/stdlib"><img src="assets/png/readme.stdlib.png"/></a>
 </p>
 
 ## Language Server integration
@@ -302,8 +302,8 @@ For debugging you need to have one of the following debuggers installed:
 
 You can support further development of the extension by fiscal donations:
 
-<a href="https://numfocus.org/donate-to-lfortran"><img src="./assets/svg/readme.lfortran.svg" width=90></a> to our [**LFortan**](https://numfocus.org/donate-to-lfortran) project on NumFOCUS
+<a href="https://numfocus.org/donate-to-lfortran"><img src="./assets/png/readme.lfortran.png"></a> to our [**LFortan**](https://numfocus.org/donate-to-lfortran) project on NumFOCUS
 
 Or
 
-<a href="https://github.com/fortran-lang/vscode-fortran-support"><img src="./assets/svg/readme.github.sponsor.svg" width=120></a> directly sponsoring developers through [**GitHub Sponsors**](https://github.com/fortran-lang/vscode-fortran-support)
+<a href="https://github.com/fortran-lang/vscode-fortran-support"><img src="./assets/png/readme.github.sponsor.png"></a> directly sponsoring developers through [**GitHub Sponsors**](https://github.com/fortran-lang/vscode-fortran-support)