Merge pull request #1259 from dauwhe/master

fix grammar error in Obfuscation section

epub32/spec/epub-ocf.html

@@ -1036,7 +1036,7 @@ <h2>Introduction</h2>
 					resources.</p>
 
 				<p>Note that no claim is made in this specification that this constitutes encryption, nor does it
-					guarantee that the resource will be secure from copyright infringement. It is the hoped, however,
+					guarantee that the resource will be secure from copyright infringement. It is hoped, however,
 					that this algorithm will meet the requirements of most vendors who require some assurance that their
 					resources cannot simply be extracted by unzipping the Container.</p>