17678: Merge branch 'master' into 17678-costanalyzer-doc

Arvados-DCO-1.1-Signed-off-by: Ward Vandewege <ward@curii.com>

diff --cc doc/_config.yml
index 1255dc680964b00af0993fb8950920a0fe54fcbd,3974745aa716eb766a46ecca0f15dcc7bb1ba6bc..55987c062fad7666e4541477b60584788fc7027f
--- 1/doc/_config.yml
--- 2/doc/_config.yml
+++ b/doc/_config.yml
@@@ -58,7 -58,7 +58,8 @@@ navbar
        - user/cwl/federated-workflows.html.textile.liquid
        - user/cwl/cwl-versions.html.textile.liquid
        - user/cwl/crunchstat-summary.html.textile.liquid
 +      - user/cwl/costanalyzer.html.textile.liquid
+       - user/debugging/container-shell-access.html.textile.liquid
      - Working with git repositories:
        - user/tutorials/add-new-repository.html.textile.liquid
        - user/tutorials/git-arvados-guide.html.textile.liquid