docs(error/badrestrict): fix typo (of --> or)

Closes angular#15979

Author: Jake Danforth

docs/content/error/$compile/badrestrict.ngdoc

@@ -5,7 +5,7 @@
 
 This error occurs when the restrict property of a directive is not valid.
 
-The directive restrict property must be a string including one of more of the following characters:
+The directive restrict property must be a string including one or more of the following characters:
 * E (element)
 * A (attribute)
 * C (class)
@@ -15,4 +15,4 @@ For example:
 ```javascript
 restrict: 'E'
 restrict: 'EAC'
-```
+```