Update README.md; Added http://metricsparrow.com/toolkit/email-permut…

…ator/ to email section

README.md

@@ -184,7 +184,7 @@ A curated list of awesome search engines useful during Penetration testing, Vuln
 - [Tomba.io](https://tomba.io/) - With 430+ million email addresses indexed, effective search filters, and deliverability checks, Tomba's email finder is its most powerful tool
 - [Snov Email Finder](https://snov.io/email-finder) Find any email. Anywhere
 - [EmailSearch.io](https://emailsearch.io/) - Find any emails and phones from a domain, Linkedin, name, and company
-
+- [MetricSparrow Email Permutator+](http://metricsparrow.com/toolkit/email-permutator/#) - This tool is intended to help you find the email addresses of people you need to contact by generating potential email addresses by permutating different combinations. 
 ### Domains
 
 - [PhoneBook](https://phonebook.cz/) - Lists all domains, email addresses, or URLs for the given input domain