BM-1163: Update release branch in docs (#773)

Co-authored-by: Angelo Capossele <angelocapossele@gmail.com>

Author: willpote

documentation/site/pages/provers/quick-start.mdx

@@ -21,7 +21,7 @@ To get started, first clone the Boundless monorepo on your proving machine, and
 ```sh
 git clone https://github.com/boundless-xyz/boundless
 cd boundless
-git checkout release-0.9
+git checkout release-0.10
 ```
 
 ## Install Dependencies