Merge pull request #1269 from fosgate29/patch-1

Fixed typo

example/react/README.md

@@ -930,7 +930,7 @@ REACT_APP_SECRET_CODE=abcdef
 
 `.env` files **should be** checked into source control (with the exclusion of `.env*.local`).
 
-#### What other `.env` files are can be used?
+#### What other `.env` files can be used?
 
 > Note: this feature is **available with `react-scripts@1.0.0` and higher**.
 
@@ -949,7 +949,7 @@ These variables will act as the defaults if the machine does not explicitly set
 Please refer to the [dotenv documentation](https://github.com/motdotla/dotenv) for more details.
 
 > Note: If you are defining environment variables for development, your CI and/or hosting platform will most likely need
-> these defined as well. Consult their documentation how to do this. For example, see the documentation for [Travis CI](https://docs.travis-ci.com/user/environment-variables/) or [Heroku](https://devcenter.heroku.com/articles/config-vars).
+> these are defined as well. Consult their documentation how to do this. For example, see the documentation for [Travis CI](https://docs.travis-ci.com/user/environment-variables/) or [Heroku](https://devcenter.heroku.com/articles/config-vars).
 
 ## Can I Use Decorators?
 
@@ -1109,7 +1109,7 @@ You may also narrow down matches using `*` and/or `**`, to match the path exactl
 
 ### Configuring a WebSocket Proxy
 
-When setting up a WebSocket proxy, there are a some extra considerations to be aware of.
+When setting up a WebSocket proxy, there are some extra considerations to be aware of.
 
 If you’re using a WebSocket engine like [Socket.io](https://socket.io/), you must have a Socket.io server running that you can use as the proxy target. Socket.io will not work with a standard WebSocket server. Specifically, don't expect Socket.io to work with [the websocket.org echo test](http://websocket.org/echo.html).