fix(solidstart): Remove public DSN from README

Author: andreiborza

packages/solidstart/README.md

@@ -66,7 +66,7 @@ Create an instrument file named `instrument.server.mjs` and add your initializat
 import * as Sentry from '@sentry/solidstart';
 
 Sentry.init({
-  dsn: 'https://[email protected]/4507459091824640',
+  dsn: '__PUBLIC_DSN__',
   tracesSampleRate: 1.0, //  Capture 100% of the transactions
 });
 ```