Created Commander (markdown)

Commander.md

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+Commander is Hilbish's custom command library, a way to write commands with the shell in Lua.  
+To require:  
+```lua
+local commander = require 'commander'
+```
+
+# Functions
+### Commander.register(cmdname, cmdfunction)
+Registers a new command named `cmdname`, which executes `cmdfunction` when ran.
+
+#### Example
+```lua
+commander.register("hello", function ()
+    print(ansikit.text "{blue}Hello world!{reset}")
+end)
+```