Commit 4e31aea

1. Check if the import ``import { _t } from 'matrix-react-sdk/lib/languageHandler';`` is present. If not add it to the other import statements. Also import `_td` if needed.

1. Add ``_t()`` to your string. (Don't forget curly braces when you assign an expression to JSX attributes in the render method). If the string is introduced at a point before the translation system has not yet been initialized, use `_td()` instead, and call `_t()` at the appropriate time.

1. Run `npm run i18n` to update ``src/i18n/strings/en_EN.json`` (if it fails because it can't find the script, your dev environment predates the script, so reinstall/link react-sdk with `npm link ../matrix-react-sdk`).

1. If you added a string with a plural, you can add other English plural variants to ``src/i18n/strings/en_EN.json`` (remeber to edit the one in the same project as the source file containing your new translation).