docs: fix broken links in build reference
@@ -402,14 +402,14 @@ the command line.
### Use a custom parent cgroup (--cgroup-parent)
When `docker build` is run with the `--cgroup-parent` option the containers
-used in the build will be run with the [corresponding `docker run`
-flag](../run.md#specify-custom-cgroups).
+used in the build will be run with the
+[corresponding `docker run` flag](../run.md#specify-custom-cgroups).
### Set ulimits in container (--ulimit)
Using the `--ulimit` option with `docker build` will cause each build step's
-container to be started using those [`--ulimit`
-flag values](run.md#set-ulimits-in-container---ulimit).
+container to be started using those
+[`--ulimit` flag values](run.md#set-ulimits-in-container---ulimit).
### Set build-time variables (--build-arg)
