fix command titles in readme

Author: alexnuttall

lambdas/backend-api/README.md

@@ -200,15 +200,15 @@ curl -X PUT --location "${APIG_STAGE}/v1/routing-configuration/${ROUTING_CONFIG_
 }'
 ```
 
-### PATCH - /v1/template/:templateId/submit - Submit a routing configuration
+### PATCH - /v1/routing-configuration/:routingConfigId/submit - Submit a routing configuration
 
 ```bash
 curl -X PATCH --location "${APIG_STAGE}/v1/routing-configuration/${ROUTING_CONFIG_ID}/submit" \
 --header 'Accept: application/json' \
 --header "Authorization: $SANDBOX_TOKEN"
 ```
 
-### DELETE - /v1/template/:templateId - Delete a routing configuration
+### DELETE - /v1/routing-configuration/:routingConfigId - Delete a routing configuration
 
 ```bash
 curl -X DELETE --location "${APIG_STAGE}/v1/routing-configuration/${ROUTING_CONFIG_ID}" \