message: Update docker.md
  add missing "to"
diff: @@ -7,7 +7,7 @@ description: How to build a Backstage Docker image for deployment
  This section describes how to build a Backstage App into a deployable Docker
  image. It is split into three sections, first covering the host build approach,
  -which is recommended due its speed and more efficient and often simpler caching.
  +which is recommended due to its speed and more efficient and often simpler caching.
  The second section covers a full multi-stage Docker build, and the last section
  covers how to deploy the frontend and backend as separate images.
  