Fix table warning

Author: Colin Robertson

docs/overview/what-s-new-for-visual-cpp-in-visual-studio.md

@@ -507,12 +507,11 @@ The CPPRestSDK, a cross-platform web API for C++, has been updated to version 2.
 
 Several C++ operations that use the IntelliSense engine for refactoring and code navigation run much faster. The following numbers are based on the Visual Studio Chromium solution with 3500 projects:
 
-|||
-|-|-|
-|Feature|Performance Improvement|
-|Rename|5.3x|
-|Change Signature |4.5x|
-|Find All References|4.7x|
+| Feature | Performance Improvement |
+|--|--|
+| Rename | 5.3x |
+| Change Signature | 4.5x |
+| Find All References | 4.7x |
 
 C++ now supports Ctrl+Click **Go To Definition**, making mouse navigation to definitions easy. The Structure Visualizer from the Productivity Power Tools pack is now also included in the product by default.