Fix README

README.md

@@ -14,8 +14,8 @@ Especially, don't update/install magisk from magisk app. It will cause permanent
 2. Setup adb (android platform tools).
 3. Launch run.bat (For Windows) or run.sh (For Linux/Mac)
     - If you get `'adb' is not recognized ...` errors, check to add adb to PATH.
-4. magisk app should be automatically installed.
-4. Run `adb shell` then `/dev/.magisk/su` to get root shell.
+4. Wait several seconds (~30s) until Magisk app is automatically installed.
+5. Run `adb shell` then `/dev/.magisk/su` (Or simply `su`) to get root shell.
 
 ![Screenshot](/screenshot1.png)
 
@@ -59,4 +59,6 @@ See [here](TECHNICAL-DETAILS.md)
 
 # Credits
 - https://dirtypipe.cm4all.com/
+- https://github.com/topjohnwu/Magisk
+- https://github.com/j4nn/CVE-2020-0041/blob/v50g8-mroot/scripts/magisk-start.sh