Update CHANGELOG.md

Author: jdbcode

CHANGELOG.md

@@ -1,3 +1,7 @@
+#### 0.1.2
+
+- Added tasseled cap yellowness index as an output band of the `addTc` function.
+
 #### 0.1.1
 
 - Fixed issue with MSScvm cloud shadow identification. Topographic correction of
@@ -7,4 +11,4 @@ intersecting the cloud projection layer was considered cloud shadow.
 
 #### 0.1.0
 
-Initial release
+Initial release