translate email address placeholder

src/components/join-flow/email-step.jsx

@@ -70,7 +70,7 @@ class EmailStep extends React.Component {
                                 error={errors.email}
                                 id="email"
                                 name="email"
-                                placeholder="Email address"
+                                placeholder={this.props.intl.formatMessage({id: 'general.emailAddress'})}
                                 validate={this.validateEmailIfPresent}
                                 validationClassName="validation-full-width-input"
                                 onBlur={() => validateField('email')} // eslint-disable-line react/jsx-no-bind

src/l10n.json

@@ -20,7 +20,7 @@
     "general.create": "Create",
     "general.credits": "Credits",
     "general.dmca": "DMCA",
-    "general.emailAddress": "Email Address",
+    "general.emailAddress": "Email address",
     "general.english": "English",
     "general.error": "Oops! Something went wrong",
     "general.errorIdentifier": "Your error was logged with id {errorId}",