Add newline at self_hosting.py end

Author: Robert Neumann

pcweb/pages/docs/hosting/self_hosting.py

@@ -131,4 +131,4 @@ def self_hosting():
             """$ docker run -d -p 3000:3000 -p 8000:8000 --name pynecone pynecone:latest""",
             language="bash",
         ),
-    )
+    )