Add DeepWiki badge

Author: hsadok

README.md

@@ -1,6 +1,7 @@
 # Ensō
 
 [![docs](https://github.com/crossroadsfpga/enso/actions/workflows/docs.yml/badge.svg)](https://github.com/crossroadsfpga/enso/actions/workflows/docs.yml)
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/crossroadsfpga/enso)
 [![DOI](https://zenodo.org/badge/248301431.svg)](https://zenodo.org/badge/latestdoi/248301431)
 
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