Better sorting of entries

[SkyyySi]

Instead of just dropping in all tools in a (seemingly) random order, the entries should be sorted by A) a category and maybe also B) alphabetically (per-category). This could be further improved by adding a table of contents at the top.

Some categories could be:

• System monitors/info viewers
• TermGUIs
• replacements (for existing tools, eg. exa for ls or ripgrep for grep)

[ibraheemdev]

Yeah, I've been wanting to do this, but I'm not sure of the best way. I want to highlight the top tools, but not exclude other alternatives that may be slightly different. I'm not even sure if I want to include TermGUIs or system monitors, because they aren't really "unix command replacements".