chore: add trailing newlines

Author: osintalex

docs/develop/backend-hot-reload.md

@@ -24,4 +24,4 @@ skaffold dev
 
 This will deploy Browsertrix into the cluster and port forward the API with hot reloading. 
 Navigate to `localhost:8000/api/redoc` to see the documentation.
-Changing any code in `backend/btrixcloud` will trigger a reload.
+Changing any code in `backend/btrixcloud` will trigger a reload.

skaffold.yaml

@@ -43,4 +43,4 @@ deploy:
             - --host
             - "0.0.0.0"
             - --port
-            - "8000"
+            - "8000"