docs: add community health files and README updates

CODE_OF_CONDUCT.md

@@ -0,0 +1,32 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We pledge to make participation in our community a harassment-free experience
+for everyone, regardless of age, body size, disability, ethnicity, gender identity,
+level of experience, nationality, personal appearance, race, religion, or sexual identity.
+
+## Our Standards
+
+**Positive behavior includes:**
+- Demonstrating empathy and kindness
+- Respecting differing opinions and experiences
+- Giving and gracefully accepting constructive feedback
+- Focusing on what is best for the community
+
+**Unacceptable behavior includes:**
+- Harassment, trolling, or personal attacks
+- Publishing others' private information without permission
+- Sexualized language or unwelcome advances
+
+## Enforcement
+
+Instances of unacceptable behavior may be reported to community leaders.
+All complaints will be reviewed and investigated promptly and fairly.
+
+## Attribution
+
+Adapted from the [Contributor Covenant](https://www.contributor-covenant.org), version 2.1.
+
+---
+*[Mukller](https://github.com/Mukller)*

README.md

@@ -97,3 +97,7 @@ The 2B checkpoint and 24GB+ RAM on GPU are used for the 7B checkpoint.
 We welcome contributions! Please read our [Contributing Guidelines](./CONTRIBUTING.md) before submitting a pull request.
 
 *This is not an official Google product.*
+
+---
+
+*[Mukller](https://github.com/Mukller)*