Edited chapter_09_docker.asciidoc with Atlas code editor

Author: chris-faucher

chapter_09_docker.asciidoc

@@ -42,8 +42,8 @@ on the actual internet.
 Give it a buzzword name like "DevOps"
 if that's what it takes to convince you it's worth it.
 
-.🚧 Warning, chapter under construction 🚧
-*******************************************************************************
+.Warning, chapter under construction
+****
 As part of my work on the third edition of the book,
 I'm making big changes to the deployment chapters,
 and this is a very new draft.
@@ -57,8 +57,7 @@ or Pull Requests.
 Let me know how you got on, if you get stuck on anything,
 if any explanations don't make sense,
 or if any of the instructions don't work for you.
-
-*******************************************************************************
+****
 
 === TDD and the Danger Areas of Deployment