Fixed typo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153142 91177308-0d34-0410-b5e6-96231b3b80d8

docs/LanguageExtensions.html

@@ -1138,7 +1138,7 @@ Objective-C memory management (autorelease).</p>
 <h2 id="object-literals-subscripting">Object Literals and Subscripting</h2>
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-<p>Clang provides support for <a href="ObjectiveCLiterals.html">Object Literals and Subscripting</a> in Objective-C, which simplifies common Objective-C programming patterns, make programs more concise, and improves the safety of container creation. There are several feature macros associated with object literals and subscripting: <code>__has_feature(objc_array_literals)</code> tests the availability of array literals; <code>__has_feature(objc_dictionary_literals)</code> tests the availability of dictionary literals; <code>__has_feature(objc_subscripting)</code> tests the availability of of object subscripting.</p>
+<p>Clang provides support for <a href="ObjectiveCLiterals.html">Object Literals and Subscripting</a> in Objective-C, which simplifies common Objective-C programming patterns, makes programs more concise, and improves the safety of container creation. There are several feature macros associated with object literals and subscripting: <code>__has_feature(objc_array_literals)</code> tests the availability of array literals; <code>__has_feature(objc_dictionary_literals)</code> tests the availability of dictionary literals; <code>__has_feature(objc_subscripting)</code> tests the availability of of object subscripting.</p>
 
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 <h2 id="overloading-in-c">Function Overloading in C</h2>