Update .gitpod.yml

Author: alesanchezr

.gitpod.yml

@@ -4,4 +4,13 @@ ports:
 tasks:
     - init: >
         npm i jest -g;
-        npm i breathecode-cli -g;
+        npm i breathecode-cli -g;
+        
+github:
+    prebuilds:
+        # enable for the master/default branch (defaults to true)
+        master: true
+        # enable for pull requests coming from this repo (defaults to true)
+        pullRequests: false
+        # add a "Review in Gitpod" button as a comment to pull requests (defaults to true)
+        addComment: false