fix typo

Author: jyecusch

docs/guides/python/ai-podcast-part-1.mdx

@@ -587,11 +587,11 @@ Let's also update the `nitric.yaml` to add the new dockerfile to our runtimes.
 name: ai-podcast
 services:
   - match: services/*.py
-    start: start: uv run watchmedo auto-restart -p *.py --no-restart-on-command-exit -R python -- -u $SERVICE_PATH
+    start: uv run watchmedo auto-restart -p *.py --no-restart-on-command-exit -R python -- -u $SERVICE_PATH
     runtime: python
 batch-services:
   - match: batches/*.py
-    start: start: uv run watchmedo auto-restart -p *.py --no-restart-on-command-exit -R python -- -u $SERVICE_PATH
+    start: uv run watchmedo auto-restart -p *.py --no-restart-on-command-exit -R python -- -u $SERVICE_PATH
     runtime: torch
 
 runtimes: