new document with ideas for indentation processing
update latest working test case’s filename in README

`general-level-1.betterc` also compiles correctly, but I don’t think I need to write that.
put more starting info in the README

copy and include sample code and name the folder with sample files, so the user doesn’t need to look those up elsewhere in the project
fix desired lots-of-indentation.c

was missing semicolons