Fix link in README

Author: KrisBraun

README.md

@@ -7,7 +7,7 @@
   Plot Agent SDK
 </h1>
 <p align="center">
-  The official SDK for building [Plot](https://plot.day) agents -<br/>
+  The official SDK for building <a href="https://plot.day">Plot</a> agents -<br/>
   custom code that organize and prioritize all your messages, tasks, and apps.
 </p>