update API doc (#171)

Author: kenjitayama

Sources/FluidStack/Helper/FluidExtentionViewController.swift

@@ -209,7 +209,6 @@ extension FluidExtentionViewController {
    - Parameters:
    - transition: You may set ``AnyRemovingTransition/noAnimation`` to disable animation, nil runs transition given view controller provides (if it's ``FluidTransitionViewController``).
    - fowardingToParent: Forwards to parent to pop if current stack do not have view controller to pop. No effects if the current stack prevents it by ``FluidStackController/Configuration-swift.struct/preventsFowardingPop``
-   - cascadesToChildren: if true and if there are view controllers stacked above this view controller, they will be removed as well
 
    - Warning: To run this method to ``FluidStackController`` does not mean to pop the current top view controller.
    A way to pop the top view controller:
@@ -250,7 +249,6 @@ extension FluidExtentionViewController {
    - Parameters:
    - transition: You may set ``AnyRemovingTransition/noAnimation`` to disable animation, nil runs transition given view controller provides (if it's ``FluidTransitionViewController``).
    - fowardingToParent: Forwards to parent to pop if current stack do not have view controller to pop. No effects if the current stack prevents it by ``FluidStackController/Configuration-swift.struct/preventsFowardingPop``
-   - cascadesToChildren: if true and if there are view controllers stacked above this view controller, they will be removed as well
 
    - Warning: To run this method to ``FluidStackController`` does not mean to pop the current top view controller.
    A way to pop the top view controller:

Sources/FluidStack/ViewController/FluidStackContext.swift

@@ -49,7 +49,7 @@ public final class FluidStackContext: Equatable {
   /// Removes the target view controller in ``FluidStackController``.
   /// - Parameter transition: if not nil, it would be used override parameter.
   ///
-  /// See detail in ``FluidStackController/removeViewController(_:transition:transitionForBatch:cascadesToChildren:completion:)``
+  /// See detail in ``FluidStackController/removeViewController(_:removingRule:transition:transitionForBatch:completion:)``
   public func removeSelf(
     removingRule: RemovingRule = .cascade,
     transition: AnyRemovingTransition?,