Update static/usage/v8/checkbox/helper-error/angular/example_component_html.md

Co-authored-by: Brandy Smith <[email protected]>

Author: thetaPC

static/usage/v8/checkbox/helper-error/angular/example_component_html.md

@@ -1,6 +1,6 @@
 ```html
 <form [formGroup]="myForm" (ngSubmit)="onSubmit()">
-  <ion-checkbox formControlName="agree" helperText="This needs to be checked" errorText="This field is required">
+  <ion-checkbox formControlName="agree" helperText="Agree to the terms before continuing" errorText="You must agree to the terms to continue">
     I agree to the terms and conditions
   </ion-checkbox>