🐛 fix(Indentation): Fix indentation in env.py

Also removed `CONTRIBUTING.md` file as it isn't necessary in the code files.

Author: jslvtr

docs/docs/11_deploy_to_render/06_run_everything_docker_compose/end/CONTRIBUTING.md

@@ -80,7 +80,7 @@ def process_revision_directives(context, revision, directives):
             connection=connection,
             target_metadata=target_metadata,
             process_revision_directives=process_revision_directives,
-                **current_app.extensions['migrate'].configure_args
+            **current_app.extensions['migrate'].configure_args
         )
 
         with context.begin_transaction():

docs/docs/11_deploy_to_render/06_run_everything_docker_compose/start/CONTRIBUTING.md

@@ -80,7 +80,7 @@ def process_revision_directives(context, revision, directives):
             connection=connection,
             target_metadata=target_metadata,
             process_revision_directives=process_revision_directives,
-                **current_app.extensions['migrate'].configure_args
+            **current_app.extensions['migrate'].configure_args
         )
 
         with context.begin_transaction():

docs/docs/11_deploy_to_render/06_run_everything_docker_compose/start/migrations/env.py

@@ -80,7 +80,7 @@ def process_revision_directives(context, revision, directives):
             connection=connection,
             target_metadata=target_metadata,
             process_revision_directives=process_revision_directives,
-                **current_app.extensions['migrate'].configure_args
+            **current_app.extensions['migrate'].configure_args
         )
 
         with context.begin_transaction():

docs/docs/12_task_queues_emails/01_send_emails_python_mailgun/end/CONTRIBUTING.md

@@ -80,7 +80,7 @@ def process_revision_directives(context, revision, directives):
             connection=connection,
             target_metadata=target_metadata,
             process_revision_directives=process_revision_directives,
-                **current_app.extensions['migrate'].configure_args
+            **current_app.extensions['migrate'].configure_args
         )
 
         with context.begin_transaction():