CHG updated what's new.md

what's new.md

@@ -133,6 +133,7 @@
 - Added optional alphaFilter parameter to ```CreateGroundFromHeightMap``` to allow for heightmaps to be created that ignore any transparent data ([Postman-nz](https://github.com/Postman-nz))
 - Fixed renormalization of mesh weights to in cleanMatrixWeights function. ([Bolloxim](https://github.com/Bolloxim))
 - Added a validationSkin function to report out any errors on skinned meshes. ([Bolloxim](https://github.com/Bolloxim))
+- Added Tools.CustomRequestHeaders to send Custom Request Headers alongside XMLHttpRequest's i.e. when loading files (Tools.Loadfile) from resources requiring special headers like 'Authorization' ([susares](https://github.com/susares))
 
 
 ### glTF Loader