Update install SHA to v1.0.0-alpha6

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: leifericf

README.md

@@ -40,7 +40,7 @@ If it cannot be represented as plain data, it probably should not be in the libr
 Add eido as a git dependency in your `deps.edn`:
 
 ```clojure
-io.github.leifericf/eido {:git/tag "v1.0.0-alpha6" :git/sha "PLACEHOLDER"}
+io.github.leifericf/eido {:git/tag "v1.0.0-alpha6" :git/sha "6a29553"}
 ```
 
 ## Quick Start