Update routing.md

fixed typo.

routing.md

@@ -277,7 +277,7 @@ You may also use the `namespace` parameter within your `group` array to specify
 <a name="sub-domain-routing"></a>
 ## Sub-Domain Routing
 
-Laravel routes are also able to handle wildcard sub-domains, and pass you wildcard parameters from the domain:
+Laravel routes are also able to handle wildcard sub-domains, and will pass your wildcard parameters from the domain:
 
 #### Registering Sub-Domain Routes