This is a minor issue, but the link in the API documentation to the description of the Easing function may be incorrect.
At least the link did not seem to describe the Easing function.
Below is the proposed amendment, but I could not judge if the linked explanation is what is expected.
NG) https://doc.babylonjs.com/babylon101/animations#easing-functions
OK) https://doc.babylonjs.com/divingDeeper/animation/advanced_animations#easing-functions