typo fix

Author: ben-allen

spec/overview.html

@@ -78,7 +78,7 @@ <h1>Implementation Dependencies</h1>
     </emu-note>
 
     <emu-note>
-      Non-normative:  s a result of this constraint, the first time a browser implementation that allows on-demand locale installation receives a request from a particular origin that could require installing a new locale, it must not reveal whether or not that locale is already installed.  This constraint is imposed to reduce the fingerprinting risk inherent in internationalization, and may be relaxed in future revisions.
+      Non-normative: As a result of this constraint, the first time a browser implementation that allows on-demand locale installation receives a request from a particular origin that could require installing a new locale, it must not reveal whether or not that locale is already installed.  This constraint is imposed to reduce the fingerprinting risk inherent in internationalization, and may be relaxed in future revisions.
     </emu-note>
 
     <emu-clause id="sec-compatibility">