Fix a typo

lib/SugarClient/README.md

@@ -8,6 +8,6 @@ This needs to be kept in sync with the Sugar Server's primus package installatio
 
 In order to sync this client version with the server we can derive the latest [primus.js](./primus.js) file by [running the sugar server locally](https://github.com/zooniverse/sugar#development-via-docker--docker-compose) and downloading the primus.js file from sugar dev server via the web browser or via `curl -s http:localhost:2999/primus.js > primus.js`.
 
-YOu can also download `primus.js` from https://notifications.zooniverse.org/primus.js.
+You can also download `primus.js` from https://notifications.zooniverse.org/primus.js.
 
 You can then replace the local version of `primus.js` with the server dervied one from sugar server and PR to replace it here.