Fix typo in link to MSBuild overview

Fix typo in link to MSBuild overview per issue #54

Author: Colin Robertson

docs/build/msbuild-visual-cpp-overview.md

@@ -40,7 +40,7 @@ MSBuild is the standard build system for Visual C++ projects. When you build a p
 
 Read the following documents about MSBuild.  
 
-- [MSBuild](/visualstudio/msbuild/msbuild1)  
+- [MSBuild](/visualstudio/msbuild/msbuild)  
  Overview of MSBuild concepts.  
 
 - [MSBuild Reference](/visualstudio/msbuild/msbuild-reference)  
@@ -154,4 +154,4 @@ The following table lists several useful user-oriented targets.
 
 ## See Also  
 
-[MSBuild (Visual C++)](../build/msbuild-visual-cpp.md)
+[MSBuild (Visual C++)](../build/msbuild-visual-cpp.md)