add help text for fullname field (#350)

src/register/RegistrationPage.jsx

@@ -552,6 +552,7 @@ class RegistrationPage extends React.Component {
               handleChange={this.handleOnChange}
               handleFocus={this.handleOnFocus}
               errorMessage={this.state.errors.name}
+              helpText={[intl.formatMessage(messages['help.text.name'])]}
               floatingLabel={intl.formatMessage(messages['registration.fullname.label'])}
             />
             <UsernameField
@@ -604,7 +605,7 @@ class RegistrationPage extends React.Component {
               handleChange={(value) => this.setState({ country: value })}
               errorCode={this.state.errorCode}
             />
-            <div id="honor-code" className="micro mt-4">
+            <div id="honor-code" className="micro text-muted mt-4">
               <FormattedMessage
                 id="register.page.terms.of.service.and.honor.code"
                 defaultMessage="By creating an account, you agree to the {tosAndHonorCode} and you acknowledge that {platformName} and each

src/register/messages.jsx

@@ -33,6 +33,11 @@ const messages = defineMessages({
     description: 'Placeholder for the country options dropdown.',
   },
   // Help text
+  'help.text.name': {
+    id: 'help.text.name',
+    defaultMessage: 'This name will be used by any certificates that you earn.',
+    description: 'Help text for fullname field on registration page',
+  },
   'help.text.username.1': {
     id: 'help.text.username.1',
     defaultMessage: 'The name that will identify you in your courses.',