fix missing extension

Colin Robertson · Colin Robertson · commit 4d5713c2cabd · 2018-06-18T17:31:43.000-07:00
diff --git a/docs/error-messages/tool-errors/linker-tools-error-lnk1000.md b/docs/error-messages/tool-errors/linker-tools-error-lnk1000.md
@@ -16,6 +16,6 @@ ms.workload: ["cplusplus"]
 
 > unknown error; consult documentation for technical support options
 
-Note the circumstances of the error, then try to isolate the problem and create a reproducible test case. For information on how to investigate and report these errors, see [How to report a problem with the Visual C++ toolset or documentation](../../how-to-report-a-problem-with-the-visual-cpp-toolset).
+Note the circumstances of the error, then try to isolate the problem and create a reproducible test case. For information on how to investigate and report these errors, see [How to report a problem with the Visual C++ toolset or documentation](../../how-to-report-a-problem-with-the-visual-cpp-toolset.md).
 
 You may get this error if you mix standard header files (for example, Windows.h) and your own files. Include a precompiled header, if any, first, then the standard headers, followed by your own header files.
