feat: add reference/governance/ethos

Adds the Ubuntu Ethos overview page. This commit copies the text
from https://ubuntu.com/community/ethos at the time of this commit.

Author: dviererbe

docs/.custom_wordlist.txt

@@ -13,6 +13,7 @@ cryptographically
 dev
 dvipng
 empathic
+equalizing
 fonts
 freefont
 genotype

docs/reference/governance/code-of-conduct.md renamed to docs/reference/governance/ethos/code-of-conduct.md

@@ -0,0 +1,31 @@
+(ethos)=
+# Ethos
+
+```{toctree}
+:maxdepth: 1
+:hidden:
+
+Code of Conduct <code-of-conduct>
+diversity-policy
+mission
+```
+
+Ubuntu is more than just a name. It embodies the very essence of our community. Deriving from an ancient African word that means “humanity to others”, our mission is and has always been to spread this spirit to the software world.
+
+## Ubuntu Code of Conduct
+
+Members of the Ubuntu Community follow a simple code of conduct that helps ensure our community stays healthy, stable and remains a place for collaboration and prosperity. For those wanting to join in our efforts, it is crucial to learn and embody these important principles.
+
+{ref}`Read the Ubuntu Code of Conduct <code-of-conduct>`
+
+## Diversity Policy
+
+Our community gains strength from its diversity and actively encourages everyone to participate in the project. We are committed to fostering a community that everyone feels proud to be a part of and one that is built around a mutual respect for one another.
+
+{ref}`Discover how we support and honour our diversity <diversity-policy>`
+
+## Our Mission
+
+The mission for Ubuntu is both social and economic. We believe that bringing free software to the widest audience will empower individuals and communities to innovate, experiment and grow. It is through the great equalizing quality of open source that we seek to spread the spirit of Ubuntu around the world.
+
+{ref}`Learn the guiding tenets of the Ubuntu Mission <mission>`

docs/reference/governance/diversity-policy.md renamed to docs/reference/governance/ethos/diversity-policy.md

@@ -1,13 +1,16 @@
 (reference-governance)=
 # Governance
 
+```{toctree}
+:maxdepth: 2
+
+ethos/index
+```
+
 ```{toctree}
 :maxdepth: 1
 
-diversity-policy
 membership-perks
-Code of Conduct <code-of-conduct>
 teams
-Mission <mission>
 conflict-resolution
 ```