docs: add the docs of nunchaku

.github/ISSUE_TEMPLATE/1-bug-report.yml

@@ -8,7 +8,7 @@ body:
     attributes:
       label: Checklist
       options:
-        - label: 1. I have searched for related issues and FAQs (https://github.com/mit-han-lab/nunchaku/blob/main/docs/faq.md) but was unable to find a solution.
+        - label: 1. I have searched for related issues and FAQs (https://nunchaku.tech/docs/nunchaku/faq/faq.html) but was unable to find a solution.
         - label: 2. The issue persists in the latest version.
         - label: 3. Please note that without environment information and a minimal reproducible example, it will be difficult for us to reproduce and address the issue, which may delay our response.
         - label: 4. If your report is a question rather than a bug, please submit it as a discussion at https://github.com/mit-han-lab/nunchaku/discussions/new/choose. Otherwise, this issue will be closed.

.github/pull_request_template.md

@@ -11,8 +11,8 @@
 ## Checklist
 
 - [ ] Code is formatted using Pre-Commit hooks.
-- [ ] Relevant unit tests are added in the [`tests`](../tests) directory following the guidance in [`tests/README.md`](../tests/README.md).
-- [ ] [README](../README.md) and example scripts in [`examples`](../examples) are updated if necessary.
+- [ ] Relevant unit tests are added in the [`tests`](../tests) directory following the guidance in [`Contribution Guide`](https://nunchaku.tech/docs/nunchaku/developer/contribution_guide.html).
+- [ ] [Documentation](../docs/source) and example scripts in [`examples`](../examples) are updated if necessary.
 - [ ] Throughput/latency benchmarks and quality evaluations are included where applicable.
 - [ ] **For reviewers:** If you're only helping merge the main branch and haven't contributed code to this PR, please remove yourself as a co-author when merging.
 - [ ] Please feel free to join our [Slack](https://join.slack.com/t/nunchaku/shared_invite/zt-3170agzoz-NgZzWaTrEj~n2KEV3Hpl5Q), [Discord](https://discord.gg/Wk6PnwX9Sm) or [WeChat](https://github.com/mit-han-lab/nunchaku/blob/main/assets/wechat.jpg) to discuss your PR.

.gitignore

@@ -103,6 +103,8 @@ instance/
 
 # Sphinx documentation
 docs/_build/
+docs/build/
+docs/doxygen/
 
 # PyBuilder
 .pybuilder/

.pre-commit-config.yaml

@@ -53,8 +53,22 @@ repos:
     rev: v0.17.0
     hooks:
       - id: yamlfmt
-  - repo: https://github.com/executablebooks/mdformat
+  - repo: https://github.com/hukkin/mdformat
     rev: 0.7.22
     hooks:
       - id: mdformat
         name: (Markdown) Format docs with mdformat
+        additional_dependencies:
+          - mdformat-gfm
+          - mdformat-black
+          - mdformat-myst
+  - repo: https://github.com/PyCQA/doc8
+    rev: v2.0.0
+    hooks:
+      - id: doc8
+        additional_dependencies: []
+  - repo: https://github.com/rstcheck/rstcheck
+    rev: main # should be replaced with the current verison
+    hooks:
+      - id: rstcheck
+        additional_dependencies: ['rstcheck[sphinx,toml]']

app/flux.1/t2i/README.md

@@ -1,4 +1,4 @@
-# Nunchaku INT4 FLUX.1 Models
+# Nunchaku 4-Bit FLUX.1 Models
 
 ## Text-to-Image Gradio Demo
 

docs/Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = source
+BUILDDIR      = build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)