hopefully fix formatting

.gitlab-ci.yml

@@ -2,7 +2,7 @@ image: continuumio/miniconda3:latest
 
 before_script:
 - conda install -y pyzmq
-- pip install jupyter-book==0.10.1 sphinxcontrib-bibtex
+- pip install jupyter-book sphinxcontrib-bibtex
 
 pages:
   stage: deploy

_toc.yml

@@ -1,18 +1,20 @@
 # Table of content
 # Learn more at https://jupyterbook.org/customize/toc.html
 #
-- file: index
+root: index
+format: jb-book
 
-- part: Admin Guide
+parts:
+- caption: Admin Guide
   chapters:
     - file: admin-guide/index
 
-- part: Infrastructure Guide
+- caption: Infrastructure Guide
   chapters:
     - file: infrastructure-guide/home
       sections:
 
-- part: RHEL8
+- caption: RHEL8
   chapters:
     - file: rhel8/index
       sections:
@@ -21,7 +23,7 @@
         - file: rhel8/vendor_documentation
         - file: rhel8/design_guiding_principles
 
-- part: RHEL8 Guides
+- caption: RHEL8 Guides
   chapters:
     - file: rhel8-guides-beta/developer_guide
     - file: rhel8-guides-beta/installation_guide