Align README with list of changes

README.md

@@ -4,7 +4,13 @@
 
 Copy of the original LSDJ tutorial for beginners written by Sabrepulse, formatted using LaTeX.
 
-I do not own the original text, this is simply yet another mirror of the tutorial with some minor edits and with some formatting.
+I do not own the original text, this is simply yet another mirror of the tutorial with some minor edits and with some formatting. More precisely:
+
+- Added some section and subsection titles.
+- Created a few figures.
+- Changed some text to match last \lsdj version (4.8.9).
+- Used formatting for inputs or for displayed game boy text.
+- Added some text to clarify some parts or give some hints.
 
 With many thanks to Sabrepulse for writing this tutorial! Don't hesitate to check out [his awesome chiptune music](http://sabrepulse.bandcamp.com/).