readme updated

README.md

@@ -7,12 +7,12 @@ See [scripts/susebootstrap.sh](scripts/susebootstrap.sh).
 
 I used that to «cross compile» packages for suse and fedora on an ubuntu server. But now I don't use these scripts anymore. To get I suse build environment, I simply use docker:
 
-  docker run --rm -it opensuse bash
+    docker run --rm -it opensuse bash
 
 I have special images prepared for my builds:
 
 https://hub.docker.com/r/mwaeckerlin/rpmbuildenv/
 
-  docker run --rm -it mwaeckerlin/rpmbuildenv:amd64-opensuse-leap
+    docker run --rm -it mwaeckerlin/rpmbuildenv:amd64-opensuse-leap
 
 This is all part of my [bootstrap environment](https://mrw.sh/development/bootstrap-build-environment), that installs a nice script `build-in-docker.sh`.