Fix: Improve clarity and grammar in index troubleshooting frontmatter

Author: duvvuvenkataramana

content/authentication/troubleshooting-ssh/index.md

@@ -1,6 +1,6 @@
 ---
 title: Troubleshooting SSH
-intro: 'When using SSH to connect and authenticate to {% data variables.product.github %}, you may need to troubleshoot unexpected issues that may arise.'
+intro: 'When using SSH to connect and authenticate to {% data variables.product.github %}, you may encounter unexpected issues that require troubleshooting.'
 redirect_from:
   - /articles/troubleshooting-ssh
   - /github/authenticating-to-github/troubleshooting-ssh