Fix markdownlint error in README

Add blank line before list to satisfy MD032 (blanks-around-lists) rule.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: pcarleton

examples/clients/conformance-auth-client/README.md

@@ -25,6 +25,7 @@ npx @modelcontextprotocol/conformance client \
 ```
 
 Available auth test scenarios:
+
 - `auth/basic-dcr` - Tests OAuth Dynamic Client Registration flow
 - `auth/basic-metadata-var1` - Tests OAuth with authorization metadata