Update README.md

README.md

@@ -173,7 +173,6 @@ If you are not a programmer but would like to contribute, check out the [Awesome
 - [json-editor](https://github.com/json-editor/json-editor) _(label: good first issue)_ <br> JSON Schema Based Editor. JSON Editor takes a JSON Schema and uses it to generate an HTML form. It has full support for JSON Schema version 3 and 4 and can integrate with several popular CSS frameworks (bootstrap, spectre, tailwind).
 - [Kinto.js](https://github.com/Kinto/kinto.js) _(label: easy-pick)_ <br> An offline-first JavaScript client leveraging the Kinto API for remote data synchronization.
 - [Leaflet](https://github.com/Leaflet/Leaflet) _(label: good first issue)_ <br> JavaScript library for mobile-friendly interactive maps.
-- [Letra Extension](https://github.com/jayehernandez/letra-extension) _(label: good first issue)_ <br> Passively learn a new language every time you open a new tab.
 - [material-ui](https://github.com/mui-org/material-ui) _(label: good first issue)_ <br> React components for faster and easier web development. Build your own design system, or start with Material Design.
 - [Mattermost](https://github.com/mattermost/mattermost-server/issues?utf8=✓&q=is:open+label:"Up+For+Grabs"+label:"Difficulty/1:Easy"+label:"Tech/Go") _(label: n/a)_ <br> Open source Slack-alternative in Golang and React
 - [Meteor](https://github.com/meteor/meteor) _(label: good first issue)_ <br> Meteor is an ultra-simple environment for building modern web applications.