message: Minor fixes in the docker-credentials form
diff: @@ -62,7 +62,7 @@ export class AppRepoAddDockerCreds extends React.Component<IAppRepoFormProps, IA
  );
  })
  ) : (
  - <span className="margin-b-small">No existing credentials found.</span>
  + <div className="margin-b-small">No existing credentials found.</div>
  )}
  {this.state.showSecretSubForm && (
  <div className="secondary-input margin-t-big">
  @@ -89,7 +89,7 @@ export class AppRepoAddDockerCreds extends React.Component<IAppRepoFormProps, IA
  id="kubeapps-docker-cred-server"
  value={this.state.server}
  onChange={this.handleServerChange}
  - placeholder="https://index.docker.io/v1"
  + placeholder="docker.io"
  required={true}
  />
  </div>
  