Update .env.example

Add BASE_URL to env example

Author: CodeIter

.env.example

@@ -5,6 +5,10 @@
 # Required: No default.
 ACCESS_TOKEN=""
 
+# BASE_URL specifies the API endpoint for accessing Threads.net.
+# It defaults to "https://graph.threads.net/v1.0", but you can override it by setting the variable.
+BASE_URL="https://graph.threads.net/v1.0"
+
 # DRAFTS_FILE specifies the file name or path for saving draft data.
 # Optional: Default = "drafts.json"
 #DRAFTS_FILE="drafts.json"