docs(readme): fix typo

README.md

@@ -32,7 +32,7 @@ Then you can use the handy builder syntax to generate your urls:
 <img src={urlFor(author.image).width(200).url()} />
 ```
 
-This will ensure that the author image is alway 200 pixels wide, automatically applying any crop specified by the editor and cropping towards the hot-spot she drew. You can specify both width and height like this:
+This will ensure that the author image is always 200 pixels wide, automatically applying any crop specified by the editor and cropping towards the hot-spot she drew. You can specify both width and height like this:
 
 ```jsx
 <img src={urlFor(movie.poster).width(500).height(300).url()}>