Use HTTPS for clone path

Author: stew675

README.md

@@ -15,7 +15,7 @@ Follow these steps to install Shake&Tune on your printer:
   1. Install Shake&Tune on your Plus4 by running over SSH on your printer:
      ```
      cd /home/mks
-     git clone git@github.com:qidi-community/klippain_v511_for_qidi_plus4.git
+     git clone https://github.com/qidi-community/klippain_v511_for_qidi_plus4.git
      cd klippain_v511_for_qidi_plus4
      ./install.sh