Adding basic documentation

README.md

@@ -0,0 +1,14 @@
+# Purpose
+
+This service makes some hard drive unavailable to Bazzite, making sure that you dont accidentaly format another OS drive (which is extremely easy to do from Steam Game Mode).
+
+# Installation
+* Adapt `hidedisks.sh` with the drives you want to ignore.
+* Put the file in `/home/bazzite/.hidedisks`
+* Install and activate the service
+```
+cp hidedisks.service /etc/systemd/system/hidedisks.service
+systemctl daemon-reload
+systemctl enable hidedisks.service
+systemctl start hidedisks.service
+```