Add README.md and comments

README.md

@@ -0,0 +1,20 @@
+# Automatic upgrade for Gitea
+
+## WARNING
+No guarantees, only tested in my environment, don't come and complain.
+
+## Prerequisite
+
+Please fill in the `work` and `gitea` variables at the beginning of the script (usually, only `work` have to be customize).
+
+## Use
+
+```
+./upgrade-gitea.sh
+```
+
+You can specify a version, else it take the last stable.
+
+If something go wrong, you will find a backup of your last executable in /tmp/gitea
+
+

upgrade-gitea.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 
 # Custom location
-work="$HOME/apps"
-gitea="$work/gitea"
+work="$HOME/apps"	# Location of your Gitea installation
+gitea="$work/gitea"	# Location of your Gitea executable
 
 # If run as root, yell at me and exit
 [[ $EUID -eq 0 ]] && echo "Don't use root to manage Gitea... It sucks..." && exit 1