Update recaptcha.md

docs/advanced-features/recaptcha.md

@@ -15,4 +15,6 @@ Add Goolgle reCAPTCHA to your event registration page to ensure the people signi
 
 ## STEP 1: Get reCAPTCHA Keys from Google
 * Go to [Google ReCAPTCHA](http://www.google.com/recaptcha/admin/create)
-* 
+  * Note: _ReCAPTCHA is based on **your** Google account. You have to have a Google account in order to enable this for your Salesforce org.****_
+* Enter a label and leave score-based (v3) checked.   
+*  Note: _This is the most advanced version confirming that you are not a bot that doesn't require the user to do anything. If ReCAPTCHA v3 is active, it evaluates all the information it can get about that person: IP address, where they are coming from and several other environmental variables of which the user is not necessarily aware. Google then compares that information to its database and gives you a score of 0-1. The higher the score, the more likely you are to be a real person._