bbatsov/emacs-lisp-style-guide: A community-driven Emacs Lisp style guide
[https://github.com/bbatsov/emacs-lisp-style-guide] - - public:mzimmerm
Misc good links for emacs
Good guide and doc for Bash arrays. Also clearly states difference between array (indexed array=list) and associative array (keyd array=map)
Great summary of org-babel especially all the tricky header variables.
Core site for Material design documentation
Example of testing a Flutter app.
Best overview of PlantUML
Good document on what is what in rooting with detail steps, but too generic.