build: remove experimental callout for bake

Signed-off-by: David Karlsson <[email protected]>

Author: dvdksn

content/manuals/build/bake/_index.md

@@ -6,13 +6,6 @@ aliases:
   - /build/customize/bake/
 ---
 
-{{% experimental %}}
-
-Bake is an experimental feature, and we are looking for
-[feedback from users](https://github.com/docker/buildx/issues).
-
-{{% /experimental %}}
-
 Bake is a feature of Docker Buildx that lets you define your build configuration
 using a declarative file, as opposed to specifying a complex CLI expression. It
 also lets you run multiple builds concurrently with a single invocation.