Close #408: fix typo introduced in #342

source

@@ -96047,7 +96047,7 @@ interface <dfn>WindowLocalStorage</dfn> {
 
   <p class="warning">The <code data-x="dom-localStorage">localStorage</code> attribute provides
   access to shared state. This specification does not define the interaction with other browsing
-  contexts in a multiprocess user agent, and authors are encourages to assume that there is no
+  contexts in a multiprocess user agent, and authors are encouraged to assume that there is no
   locking mechanism. A site could, for instance, try to read the value of a key, increment its
   value, then write it back out, using the new value as a unique identifier for the session; if the
   site does this twice in two different browser windows at the same time, it might end up using the