Updated readme

README.md

@@ -1,6 +1,17 @@
 # Customary
 
 cus·tom·ar·y
+
 _/ˈkəstəˌmerē/_
+
 _adjective_
-1. according to the customs or usual practices associated with a particular society, place, or set of circumstances.
+
+1. according to the customs or usual practices associated with a particular
+society, place, or set of circumstances.
+
+This package prevents HTML forms from submitting by hooking in to and preventing
+their `submit` event.
+
+This means that [native validation](https://caniuse.com/#feat=form-validation)
+can be leveraged, and a callback passed to the function can handle the form
+after it has already been validated by the browser.