Changed the version number from 0.1.0 to 0.1.1 in the CHANGELOG.md

[junho85]

Description

Changed the version number from 0.1.0 to 0.1.1 in the CHANGELOG.md

First release version was 0.1.1 https://github.com/microsoft/graphrag/releases/tag/v0.1.1

Related Issues

Proposed Changes

Checklist

• [x] I have tested these changes locally.
• [x] I have reviewed the code changes.
• [x] I have updated the documentation (if necessary).
• [x] I have added appropriate unit tests (if applicable).

Additional Notes