Update Testing.md

Signed-off-by: Radu Marias <[email protected]>

docs/readme/Testing.md

@@ -66,8 +66,7 @@ Do step 6 from above.
   ```bash
   git reset --hard
   git pull
-  rm -rf final
-  cargo run --release -- mount -m final -d data
+  rm -rf final && cargo run --release -- mount -m final -d data
   ```
 6. Input a password and confirm it the first time