Update index.md

Author: jAniceto

programming-notes/index.md

@@ -2,16 +2,30 @@
 
 A collection of programming notes, snippets and examples. By José Aniceto.
 
-[Click for the website](https://janiceto.github.io/programming-notes/)
+[Click here to check the website](https://janiceto.github.io/programming-notes/)
 
 Below is a list of the most used pages.
 
+## Python
+- [Working with uv](/programming-notes/python/uv)
+- [Simple Machine Learning workflow](/programming-notes/python/ml-workflows)
+- [Scientific quality figures](/programming-notes/python/scientific-figures)
 
-## General
 
-- [Ubuntu CLI cheat sheet](linux/linux-terminal-cheatsheet.md)
+## MATLAB
+- [Figures in MATLAB](/matlab/figures)
+- [Preparing figures for publication](programming-notes/matlab/figures-publication)
 
+## GENERAL
+- [Create a Windows batch script](/general/batch-script.md)
+- [Hiding Passwords and Secret Keys in Environment Variables](/general/os-env-vars.md)
+- [Windows terminal](/general/windows-terminal.md)
 
-## Python
+## LINUX
+- [Set `$PATH` variable in Ubuntu](/linux/path.md)
+- [Linux Crontab](/linux/crontab.md)
 
-- [Scientific quality figures](python/scientific-figures.md)
+## LATEX
+- [Working with figures](/latex/figures.md)
+- [Create LaTeX presentations with Beamer](/latex/beamer.md)
+- [Derivatives](/latex/derivatives.md)