add exact example for tag name in your-first-component

Author: keithamus

docs/_guide/your-first-component.md

@@ -25,7 +25,7 @@ class HelloWorldElement extends HTMLElement {
 ```
 <br>
 
-Catalyst will automatically convert the classes name; removing the trailing `Element` suffix and lowercasing all capital letters, separating them with a dash.
+Catalyst will automatically convert the classes name so the HTML tag will be `<hello-world>`. It removes the trailing `Element` suffix and lowercases all capital letters, separating them with a dash.
 
 Catalyst controllers can end in `Element`, `Controller`, or `Component` and Catalyst will remove this suffix when generating a tag name. Adding one of these suffixes is _not_ required - just convention. All examples in this guide use `Element` suffixed names (see our [convention note on this for more]({{ site.baseurl }}/guide/conventions#suffix-your-controllers-consistently-for-symmetry)).