added newsletter

Author: Dhruva Shaw

_config.yml

@@ -179,8 +179,8 @@ giscus:
 # -----------------------------------------------------------------------------
 
 newsletter:
-  enabled: false
-  endpoint: # your loops endpoint (e.g., https://app.loops.so/api/newsletter-form/YOUR-ENDPOINT)
+  enabled: true
+  endpoint: cm569b9jx027xdomdqvp1ai43 # your loops endpoint (e.g., https://app.loops.so/api/newsletter-form/YOUR-ENDPOINT)
   # https://loops.so/docs/forms/custom-form
 
 # -----------------------------------------------------------------------------