Update readme

README.md

@@ -8,7 +8,11 @@ If your application uses this component and you would like to show it off, pleas
 
 ### 9-7-2017 - Version 4: 
 
-Version 4 was released which adds multiple plots, dynamic reloading of values, more reference line customisation options and various bug fixes. The public interface will be incompatible with previous versions. If you prefer to keep using the older version, make sure to specify version 3 in your podfile.
+Version 4 was released which adds multiple plots, dynamic reloading of values, more reference line customisation options and various bug fixes. 
+
+You can see the major changs in the API [here](APIv4.md).
+
+The public interface is incompatible with previous versions. If you prefer to keep using the older version, make sure to specify version 3 in your podfile or downloaded the classes from a pre-v4 release.
 
 ## About
 
@@ -167,7 +171,7 @@ These settings can be set directly on the `ScrollableGraphView` object before ad
 ## Plot Customisation
 
 
-For all plots you can specify animation related information for when the plot first appears and during adaptions. All of th
+For all plots you can specify animation related information for when the plot first appears and during adaptions.
 
 #### Animation
 | Property                                                | Description                                                                                                                                                                                                                                                                                            |