Update README.md (#4892)

fix alt parameter spelling of the Discord image tag

README.md

@@ -2,7 +2,7 @@
   <br/>  
   <a href="https://opensource.org/licenses/MIT"><img src="https://img.shields.io/badge/license-MIT-green.svg?color=3F51B5&style=for-the-badge&label=License&logoColor=000000&labelColor=ececec" alt="License: MIT"></a>
   <a href="https://discord.gg/D8JsnBEuKb">
-    <img src="https://img.shields.io/discord/979116623879368755.svg?label=Discord&logo=Discord&style=for-the-badge&logoColor=000000&labelColor=ececec" atl="Discord"/>
+    <img src="https://img.shields.io/discord/979116623879368755.svg?label=Discord&logo=Discord&style=for-the-badge&logoColor=000000&labelColor=ececec" alt="Discord"/>
   </a>
   <br/>  
   <br/>