docs: update docs

Author: noamteyssier

README.md

@@ -20,7 +20,8 @@ All variants support both single and paired sequences.
 
 **Note:** For most use cases, the newest variant _CBQ_ is recommended due to its flexibility, storage efficiency, and decoding speed.
 It supersedes _VBQ_ in terms of performance and storage efficiency, at a small cost in encoding speed.
-VBQ is still supported for legacy reasons but newer projects should consider using _CBQ_ instead.
+VBQ will still be supported but newer projects should consider using _CBQ_ instead.
+For information on the structure of _CBQ_ files, see the [documentation](https://docs.rs/binseq/latest/binseq/cbq/).
 
 ## Getting Started