Doc: remove (kind of) outdated information

Fix #867

DEVELOPMENT.md

@@ -1,34 +0,0 @@
-# Development help
-
-This file is not an official documentation!
-Here i just add things that are easy to forget.
-
-## Features i am planning to implement
-
-### Specific
-
-- [ ] Split the project in different libs / executables, all linking static by default:
-  - `libffdetect`: contains all the detection stuff. To be used by anything that needs system information
-  - `libffprint`: contains the printing functions, logos, format etc
-  - `fastfetch` and `flashfetch`: Executables, that initialize the config of libffprint. Fist one at runtime, second one at compile time
-- [ ] Make LocalIP module more configurable
-- [ ] Automatic migrate old config files to newer versions
-- [ ] ZSH completions
-- [ ] Fish completions
-- [ ] Make CPU usage detection much faster and more accurate
-- [ ] Detect CPU usage in a common detection method and expose it both to the cpuUsage module and the cpu format string
-- [ ] Per session caching
-
-### General
-- More presets
-- More logos
-- More package managers
-- More DE detections
-- More WM theme detections
-- More terminal font detections
-- Performance optimizations
-- More module specific options
-- Better error handling, especially the messages shown when using --show-errors
-- Using package managers libraries for package count detection instead own. E.g. using libalpm instead of counting files in /var/lib/pacman/local
-- Better documentation (especially default config file and the various --help options. Colored output?)
-- General feature parity with neofetch, to demonstrate supremity of c