Merge branch '8567-docker-migrator' refs #8567

diff --combined doc/_config.yml
index 167160c6562e7ae62705dc10acaf9fff7c4fb7f8,cfb35dcd18cb7a6db22af6a7da6d0e360e4ec779..8c3d42a397691b3a745b77b1a9de5f4f61316c24
--- 1/doc/_config.yml
--- 2/doc/_config.yml
+++ b/doc/_config.yml
@@@ -162,15 -162,14 +162,17 @@@ navbar
        - install/install-keep-balance.html.textile.liquid
      - Containers API support on SLURM:
        - install/crunch2-slurm/install-prerequisites.html.textile.liquid
 +      - install/crunch2-slurm/install-slurm.html.textile.liquid
        - install/crunch2-slurm/install-compute-node.html.textile.liquid
        - install/crunch2-slurm/install-dispatch.html.textile.liquid
        - install/crunch2-slurm/install-test.html.textile.liquid
 +      - install/install-nodemanager.html.textile.liquid
 +      - install/install-compute-ping.html.textile.liquid
      - Jobs API support (deprecated):
        - install/install-crunch-dispatch.html.textile.liquid
        - install/install-compute-node.html.textile.liquid
      - Helpful hints:
        - install/copy_pipeline_from_curoverse.html.textile.liquid
        - install/cheat_sheet.html.textile.liquid
+     - Migrating from Docker 1.9:
+       - install/migrate-docker19.html.textile.liquid