fix(docs): add hunter (#857)

Author: waleedlatif1

apps/docs/content/docs/tools/hunter.mdx

@@ -24,6 +24,20 @@ import { BlockInfoCard } from "@/components/ui/block-info-card"
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+{/* MANUAL-CONTENT-START:intro */}
+[Hunter.io](https://hunter.io/) is a leading platform for finding and verifying professional email addresses, discovering companies, and enriching contact data. Hunter.io provides robust APIs for domain search, email finding, verification, and company discovery, making it an essential tool for sales, recruiting, and business development.
+
+With Hunter.io, you can:
+
+- **Find email addresses by domain:** Search for all publicly available email addresses associated with a specific company domain.
+- **Discover companies:** Use advanced filters and AI-powered search to find companies matching your criteria.
+- **Find a specific email address:** Locate the most likely email address for a person at a company using their name and domain.
+- **Verify email addresses:** Check the deliverability and validity of any email address.
+- **Enrich company data:** Retrieve detailed information about companies, including size, technologies used, and more.
+
+In Sim, the Hunter.io integration enables your agents to programmatically search for and verify email addresses, discover companies, and enrich contact data using Hunter.io’s API. This allows you to automate lead generation, contact enrichment, and email verification directly within your workflows. Your agents can leverage Hunter.io’s tools to streamline outreach, keep your CRM up-to-date, and power intelligent automation scenarios for sales, recruiting, and more.
+{/* MANUAL-CONTENT-END */}
+
 ## Usage Instructions
 
 Search for email addresses, verify their deliverability, discover companies, and enrich contact data using Hunter.io's powerful email finding capabilities.