Added LS3 planning (#236)

* added via codi md

* blank line

* typo

Author: JoschD

docs/omc_team/ls3.md

@@ -0,0 +1,20 @@
+# Long Shutdown 3 (LS3) Plans
+
+!!! note "CodiMD"
+    The content of this page is hosted on CodiMD for easy editing.
+    But you need to visit [the original codimd page](https://codimd.web.cern.ch/s/QnZCDVRes){target=_blank}
+    to be able to login and edit!
+
+The following is the LS3 plan for the OMC team.
+This is a living document and will be updated as plans evolve.
+A preliminary version was presented in the ABP-OP bilateral meeting
+and can be found [on the indico page][ABPOPMeetingPresentation]{target=_blank}.
+
+<iframe src="https://codimd.web.cern.ch/s/QnZCDVRes"
+    width="100%"
+    height="800"
+    style="border: none;"
+    allowfullscreen>
+</iframe>
+
+[ABPOPMeetingPresentation]: https://indico.cern.ch/event/1540018/contributions/6480891/attachments/3062480/5415830/OMC%20automation%20efforts.pdf

mkdocs.yml

@@ -126,7 +126,9 @@ nav:
   - OMC Team:
     - About: omc_team/about.md
     - Publications: omc_team/publications.md
-    - Future MD Ideas: omc_team/ideas.md
+    - Planning:
+      - LS3: omc_team/ls3.md
+      - Future MD Ideas: omc_team/ideas.md
     - ↪ On Mattermost: https://mattermost.web.cern.ch/be-dep/channels/omc-team
     - ↪ Meetings (Indico): https://indico.cern.ch/category/5986/
   - Python Ecosystem: