Update .env.example

Comment default ACCESS_TOKEN to not override environment variables

Author: CodeIter

.env.example

@@ -2,7 +2,7 @@
 
 # ACCESS_TOKEN is used for authenticating API requests to Meta's Threads app and Threads.net,
 # Required: No default.
-ACCESS_TOKEN=""
+#ACCESS_TOKEN=""
 
 # BASE_URL specifies the API endpoint for accessing Meta's Threads app.
 # Optional: Default= "https://graph.threads.net/v1.0"