Improve README markdown

Author: michaliskambi

README.md

@@ -1,13 +1,16 @@
 # Modern Object Pascal Introduction for Programmers
 
-An introduction to modern Object Pascal. May be useful for programmers that already know the concepts (like "class"), but don't know how these concepts look in Object Pascal.
+An introduction to modern Object Pascal, as implemented by both FPC and Delphi.
 
-Contains some introductory material at the beginning, and at the end quickly jumps over more advanced topics like class references. Enjoy, and share and redistribute freely!
+Read the output as:
 
-Source code is in AsciiDoc, processed by AsciiDoctor http://asciidoctor.org/ .
+* [Webpage](https://castle-engine.io/modern_pascal) (has also links to a few translations and more resources)
+* [PDF](https://castle-engine.io/modern_pascal_introduction.pdf)
 
-The output is on:
-* https://castle-engine.io/modern_pascal_introduction.html
-* PDF: https://castle-engine.io/modern_pascal_introduction.pdf
+Written as a resource for programmers that already know basic concepts common to many programming languages (like _"what is a class"_) and want to learn know how these concepts look in Object Pascal.
 
-By Michalis Kamburelis (author of Castle Game Engine https://castle-engine.io/ ).
+Contains some introductory material at the beginning, and at the end quickly goes through more advanced topics like class references. Enjoy, share and redistribute freely!
+
+Source code is in AsciiDoc, processed by [AsciiDoctor](http://asciidoctor.org/).
+
+By Michalis Kamburelis (author of [Castle Game Engine](https://castle-engine.io/)).