Improve README

cc @rustdesk

README.md

@@ -1,4 +1,52 @@
-# rustdesk-server-pro
-Some scripts for RustDesk Server Pro are hosted here.
+# RustDesk Server PRO
+Here we have a small collection of some scripts for RustDesk Server Pro.
 
 > If you are looking for the open source version please go to [RustDesk Server](https://github.com/rustdesk/rustdesk-server)
+
+# Contributing to this repo
+
+You are very welcome to add your PR to improve the current scripts. Some pointers:
+
+### The lib file
+
+The lib.sh is used to avoid duplicate code. Here we collect everything that occurs more than once in the varoius scripts. That could be both `functions()` and `$variables`.
+
+### Indentation
+
+We always use four (4) spaces, not one (1) tab. Please see below for examples.
+
+### IF arguments and functions
+
+The current style is to use it like this:
+
+```
+if something
+then
+    do something
+fi
+```
+Not like:
+```
+if something; then
+    do something
+fi
+```
+
+Same applies for functions:
+
+```
+examplefuntion() [
+    if something
+    then
+        do something
+    fi
+}
+```
+
+### Variables
+
+Variables are always written in CAPITAL LETTERS.
+
+```
+EXAMPLEVARIABLE=true
+```