[Docs] Linking Libraries fix site->side, prefer only to just

docs/LinkingLibraries.md

@@ -17,7 +17,7 @@ For most of the libs it will be as simple as dragging two files, sometimes a thi
 step will be necessary, but no more than that.
 
 _All the libraries we ship with React Native live on the `Libraries` folder in
-the root of the repository. Some of them are pure JavaScript, and you just need
+the root of the repository. Some of them are pure JavaScript, and you only need
 to `require` it. Other libraries also rely on some native code, in that case
 you'll have to add these files to your app, otherwise the app will throw an
 error as soon as you try to use the library._
@@ -47,9 +47,8 @@ Not every library will need this step, what you need to consider is:
 
 _Do I need to know the contents of the library at compile time?_
 
-What that means is, are you using this library on the native site or just in
-JavaScript? If you are just using it in JavaScript, you are good to go!
-
+What that means is, are you using this library on the native side or only in
+JavaScript? If you are only using it in JavaScript, you are good to go!
 
 This step is not necessary for libraries that we ship with React Native with the
 exception of `PushNotificationIOS` and `LinkingIOS`.