New docs are in mkdocs (#4178)

* start mkdocs

* simple docs for tensor

* more docs

* move those back

* more docs

* copy markdown extensions

* docs legacy

* docs building workflow

* fix showcase links

* only that?

* install tinygrad

* add docs to setup.py

* Delete examples/llm.c/data

mkdocs.yml

@@ -0,0 +1,98 @@
+# pip install mkdocs mkdocs-material mkdocstrings[python]
+site_name: tinygrad docs
+site_url: https://docs.tinygrad.org/
+nav:
+- Home: index.md
+- Tensor: tensor.md
+- dtypes: dtypes.md
+- Neural Networks: nn.md
+- Quickstart: quickstart.md
+- Showcase: showcase.md
+- Developer: developer.md
+- Function: function.md
+#- tinygrad: reference/
+
+#extra_css:
+#- css/tinygrad.css
+
+markdown_extensions:
+- attr_list
+- admonition
+- callouts
+- footnotes
+- pymdownx.details
+- pymdownx.emoji:
+    emoji_index: !!python/name:material.extensions.emoji.twemoji
+    emoji_generator: !!python/name:material.extensions.emoji.to_svg
+- pymdownx.highlight:
+    pygments_lang_class: true
+- pymdownx.inlinehilite:
+    style_plain_text: python
+- pymdownx.magiclink
+- pymdownx.snippets:
+    base_path: [!relative $config_dir]
+    check_paths: true
+- pymdownx.superfences
+- pymdownx.tabbed:
+    alternate_style: true
+    slugify: !!python/object/apply:pymdownx.slugs.slugify
+      kwds:
+        case: lower
+- pymdownx.tasklist:
+    custom_checkbox: true
+- pymdownx.tilde
+- toc:
+    permalink: "¤"
+
+theme:
+  name: material
+  features:
+  - announce.dismiss
+  - content.action.edit
+  - content.action.view
+  - content.code.annotate
+  - content.code.copy
+  - content.tooltips
+  - navigation.footer
+  - navigation.indexes
+  - navigation.sections
+  - navigation.tabs
+  - navigation.tabs.sticky
+  - navigation.top
+  - search.highlight
+  - search.suggest
+  - toc.follow
+  palette:
+    scheme: slate
+    primary: black
+    accent: lime
+plugins:
+- search
+- mkdocstrings:
+    handlers:
+      python:
+        import:
+        - https://docs.python.org/3/objects.inv
+        paths: [tinygrad]
+        options:
+          docstring_options:
+            ignore_init_summary: true
+          docstring_section_style: list
+          filters: ["!^_"]
+          heading_level: 3
+          inherited_members: false
+          merge_init_into_class: true
+          separate_signature: true
+          show_root_heading: true
+          show_root_full_path: false
+          show_signature_annotations: true
+          show_symbol_type_heading: true
+          show_symbol_type_toc: true
+          show_source: true
+          signature_crossrefs: true
+          summary: true
+#- gen-files:
+#    scripts:
+#      - docs/gen_ref_pages.py
+#- literate-nav:
+#    nav_file: SUMMARY.md