Add automatic update for the community version

This script is run on Alpine Linux, but it should work on any other Linux Distrubution as well as long as the requirements are fulfilled.

README.md

@@ -62,6 +62,38 @@ Space view.
 
 [Enterprise edition: v1.72.0](https://documize.com/downloads)
 
+#### Update to latest comunity version automatically in Linux
+
+```
+#!/bin/bash
+
+# Requires:
+- curl
+- wget 
+- A service for documize
+
+VERSION="$(curl -s https://api.github.com/repos/documize/community/releases | grep 'tag_name' | cut -d\" -f4 | head -1)"
+
+service documize stop
+rm -f /bin/documize-community-linux-amd64
+if wget https://github.com/documize/community/releases/download/$VERSION/documize-community-linux-amd64 -P /bin/
+then
+    chmod +x /bin/documize-community-linux-amd64
+    echo "Rebooting in 5 seconds..."
+    echo "5"
+    sleep 1
+    echo "4"
+    sleep 1
+    echo "3"
+    sleep 1
+    echo "2"
+    sleep 1
+    echo "1"
+    sleep 1
+    reboot
+fi
+```
+
 ## OS support
 
 Documize runs on the following: