fix warning inline blocks in guides/index.md

Author: JaredTan95

site-src/guides/index.md

@@ -49,7 +49,7 @@ Tooling:
 
 === "CPU-Based Model Server"
 
-      ???+ warning
+      ??? warning
 
          CPU deployment can be unreliable i.e. the pods may crash/restart because of resource contraints.