Update install-from-packages.md

Include yarn build to recreate the lock file

Author: mikejmets

docs/install/install-from-packages.md

@@ -184,7 +184,13 @@ Install the latest Yarn 3 version (not the Classic 1.x one) using `npm`.
     yarn set version 3.x
     ```
 
-    If the version doesn't change try deleting the yarn.lock file and set the version again.
+    If the version doesn't change you can try deleting the yarn.lock file, setting the version and installing again.
+    ```shell
+    rm yarn.lock
+    yarn set version 3.x
+    yarn install
+    ```
+    
 
 
 (install-prerequisites-make-label)=