Update cmake-settings.md

docs/cmake-settings.md

@@ -74,11 +74,12 @@ Supported commands for substitution:
 |`cmake.buildTargetName`|The current target selected for build.|
 |`cmake.buildType`|Same as `${buildType}`. The current CMake build type.|
 |`cmake.buildKit`|Same as `${buildKit}`. The current CMake kit name.|
-|`cmake.buildDirectory`|The full path to the directory where CMake cache files are located|
+|`cmake.buildDirectory`|The full path to the directory where CMake cache files are located.|
+|`cmake.tasksBuildCommand`|The CMake command used to build your project based on the currently selected Kit + Variant + Target. Suitable for use within `tasks.json`.|
 
 ## Next steps
 
 - Learn about [user vs. workspace settings](https://code.visualstudio.com/docs/getstarted/settings)
 - [Get started with CMake Tools on Linux](https://code.visualstudio.com/docs/cpp/cmake-linux)
 - Review [How CMake Tools builds](build.md#how-cmake-tools-builds)
-- Explore the [CMake Tools documentation](README.md)
+- Explore the [CMake Tools documentation](README.md)