add news of 8.x to readme

README.md

@@ -68,6 +68,13 @@ Weight initializers:
 
 Multicolumn net also possible, as in [McDnn](http://arxiv.org/pdf/1202.2745.pdf)
 
+# Important news: 8.x is now merged to master!
+
+Important news: 8.x is now merged to master!  This brings a few big changes:
+* clblas is now integrated into the build
+* im2col convolution layers are now available, and automatically used where they bring a speed advantage
+* python wrappers now use the native libraries directly, rather than having their own separate native library build process
+
 # Example usages
 
 - obtained 37.2% test accuracy, on next move prediction task, using 33.6 million training examples from [kgsgo v2 dataset](https://github.com/hughperkins/kgsgo-dataset-preprocessor)