Fix command formatting

docs/plugins.md

@@ -31,7 +31,7 @@ plugins do the "detail work" of performing a desired action.
 
 ## Installing a Plugin
 
-Plugins are installed using the `$ helm plugin install <path|url> command. You can pass in a path to a plugin on your local file system or a url of a remote VCS repo. The `helm plugin install` command clones or copies the plugin at the path/url given into `$ (helm home)/plugins`
+Plugins are installed using the `$ helm plugin install <path|url>` command. You can pass in a path to a plugin on your local file system or a url of a remote VCS repo. The `helm plugin install` command clones or copies the plugin at the path/url given into `$ (helm home)/plugins`
 
 ```console
 $ helm plugin install https://github.com/technosophos/helm-template