cake docs

Author: Chris Crutchfield

doc/cake.md

@@ -0,0 +1,11 @@
+# Cake Build
+Add `#addin Cake.GitVersioning` to the top of your Cake Build script.  See [here](doc/Cake/GitVersioning/GitVersioningAliases) for usage.  See [here](doc/Nerdbank/GitVersioning/VersionOracle) for the VersionOracle usage.
+
+## Example
+~~~~csharp
+Task("GetVersion")
+    .Does(() =>
+{
+    Information(GetVersioningGetVersion().SemVer2)
+});
+~~~~