Small change to submit model instructions

app.py

@@ -187,7 +187,7 @@ def create_ui():
                 """
                 ######
                 #### Want to add a model to this leaderboard?
-                #### 1. Run RubricEval locally for <$x (see [insert github link])
+                #### 1. Run RubricEval locally for <$x (see [insert github link]).
                 #### 2. Upload the evaluation file generated by RubricEval below. Note: the file name will be used as the model name.
                 #### 3. Wait ~5 seconds and refresh the leaderboard page to see that your model has been added!
                 ######