Update migration to alpha10 version guide

documentation/releases/2.0.0-alpha10.md

@@ -182,6 +182,16 @@ class SomeVisualisation(
 +) : BaseVisualisation<T, State<T>, TargetUiState, MutableUiState>(
 ```
 
+## KSP processor name change
+
+You only need to do this if you implemented your own `Visualisation`. If you only relied on the ones supplied by the library, you don't need to do anything.
+
+```diff
+dependencies {
+-    ksp("com.bumble.appyx:mutable-ui-processor:{latest version}")
++    ksp("com.bumble.appyx:appyx-processor:{latest version}")
+}
+```
 
 ## KSP generated method name change