adding missing redirect

Author: jason-cf

public/_redirects

@@ -430,6 +430,7 @@
 /durable-objects/get-started/video-series/make-answer-webrtc-calls/ /durable-objects/video-tutorials/ 301
 /durable-objects/get-started/video-series/real-time-messaging/ /durable-objects/video-tutorials/ 301
 /durable-objects/get-started/video-series/serverless-websocket/ /durable-objects/video-tutorials/ 301
+/durable-objects/get-started/video-series/ /durable-objects/video-tutorials/ 301
 
 # email-routing
 /email-routing/enable-email-routing/ /email-routing/get-started/enable-email-routing/ 301