chore: update slack

README.md

@@ -11,7 +11,7 @@
 
 <p align=center>
 <a href="https://pypi.org/project/clip_server/"><img alt="PyPI" src="https://img.shields.io/pypi/v/clip_server?label=PyPI&logo=pypi&logoColor=white&style=flat-square"></a>
-<a href="https://slack.jina.ai"><img src="https://img.shields.io/badge/Slack-2.8k-blueviolet?logo=slack&amp;logoColor=white&style=flat-square"></a>
+<a href="https://slack.jina.ai"><img src="https://img.shields.io/badge/Slack-3.1k-blueviolet?logo=slack&amp;logoColor=white&style=flat-square"></a>
 <a href="https://codecov.io/gh/jina-ai/clip-as-service"><img alt="Codecov branch" src="https://img.shields.io/codecov/c/github/jina-ai/clip-as-service/main?logo=Codecov&logoColor=white&style=flat-square"></a>
 <a href="https://colab.research.google.com/github/jina-ai/clip-as-service/blob/main/docs/playground/cas-on-colab.ipynb"><img src="https://img.shields.io/badge/Host-on%20Google%20Colab%20(GPU/TPU)-yellow?style=flat-square&logo=googlecolab&&logoColor=white" alt="Host on Google Colab with GPU/TPU support"></a>
 </p>