docs: update readme and mcp.json with repository url (#76)

- Give the correct URL address in the mcp.json and the main README

## Motivation and Context
Improve documentation

## How Has This Been Tested?
No Testing.

## Breaking Changes
N/A

## Types of changes
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update

## Checklist
- [ ] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [ ] My code follows the repository's style guidelines
- [ ] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

README.md

@@ -251,7 +251,7 @@ Request body example:
         }
     ],
     "repository": {
-        "url": "https://github.com//<owner>/<server-name>",
+        "url": "https://github.com/<owner>/<server-name>",
         "source": "github"
     },
     "version_detail": {

tools/publisher/mcp.json

@@ -48,7 +48,7 @@
         }
     ],
     "repository": {
-        "url": "https://github.com//<owner>/<server-name>",
+        "url": "https://github.com/<owner>/<server-name>",
         "source": "github"
     },
     "version_detail": {