add cura install instructions to arch workstation

arch/workstation.md

@@ -22,6 +22,7 @@
   - [QMK](#qmk)
     - [Initialization](#initialization)
     - [Development](#development)
+  - [Cura](#cura)
 
 ## Base Tools
 
@@ -306,3 +307,20 @@ git rebase mirror/master
 ```
 
 Commit to master while you're in the fork.
+
+## Cura
+
+<https://ultimaker.com/software/ultimaker-cura/#links>
+
+```bash
+mv ~/Downloads/*Cura*.AppImage ~/Applications/Cura.AppImage
+chmod +x ~/Applications/*.AppImage
+```
+
+```conf
+[Desktop Entry]
+Name=Cura
+Exec=/home/ducoterra/Applications/Cura.AppImage
+Icon=/home/ducoterra/.icons/cura.png
+Type=Application
+```