Fix a typo

Loïc Collignon [IoT.bzh] · web-flow · commit 322d7704b019 · 2017-02-17T16:20:14.000+01:00
diff --git a/versions/3.0.md b/versions/3.0.md
@@ -344,7 +344,7 @@ servers:
   description: Production server
 ```
 
-The following shows how templates an be used for a server configuration
+The following shows how templates can be used for a server configuration
 
 ```yaml
 servers:
