docs(readme): document setup

Related: publicdomainrelay/reference-implementation#15
Signed-off-by: John Andersen <[email protected]>

README.md

@@ -0,0 +1,20 @@
+# Git over ATProto
+
+You must install [`deno`](https://docs.deno.com/runtime/getting_started/installation/) due to profile pinned post updating not being available in the Python ATProto client APIs yet.
+
+```bash
+python -m pip install gitatp
+
+curl -fsSL https://deno.land/install.sh | sh
+
+git config --global user.email $USER@example.com
+git config --global user.atproto $USER.atproto-pds.fqdn.example.com
+python -m keyring set $USER@example.com password.$USER.atproto-pds.fqdn.example.com
+
+python -m gitatp --repos-directory $HOME/.local/$USER-gitatp-repos
+```
+
+- References
+  - https://github.com/publicdomainrelay/reference-implementation/issues/15
+
+[![asciicast](https://asciinema.org/a/692702.svg)](https://asciinema.org/a/692702)

pyproject.toml

@@ -1,13 +1,12 @@
 [project]
 name = "gitatp"
-version = "0.1.5"
+version = "0.2.0"
 description = "Git over ATProto"
-long_description = "[![asciicast](https://asciinema.org/a/692702.svg)](https://asciinema.org/a/692702)"
-long_description_content_type = "text/markdown"
 readme = {file = "README.md", content-type = "text/markdown"}
 authors = [
     { name = "Public Domain", email = "[email protected]" }
 ]
+license = {text = "Unlicense"}
 requires-python = ">=3.12"
 dependencies = [
     "atproto>=0.0.55",
@@ -16,6 +15,10 @@ dependencies = [
     "keyring>=25.5.0",
 ]
 
+[project.urls]
+Repository = "https://github.com/publicdomainrelay/gitatp.git"
+Issues = "https://github.com/publicdomainrelay/gitatp/issues"
+
 [project.scripts]
 gitatp = "gitatp.cli:main"