chore: fix FromAsCasing in Dockerfile example

dvdksn · dvdksn · commit 239930c99897 · 2024-10-16T15:58:34.000+02:00
Signed-off-by: David Karlsson &lt;35727626+dvdksn@users.noreply.github.com&gt;
diff --git a/docs/reference/buildx_build.md b/docs/reference/buildx_build.md
@@ -626,7 +626,7 @@ For example, the following Dockerfile contains four stages:
 ```dockerfile
 # syntax=docker/dockerfile:1
 
-FROM oven/bun:1 as base
+FROM oven/bun:1 AS base
 WORKDIR /app
 
 FROM base AS install
