The new `api/` reference pages surfaced 22 docutils warnings from
informal reST in public docstrings; fix the markup so the docs
build is warning-free (24 -> 0), clearing the path to a future
`-W`/`nitpicky` flip in CI.
Deats (docstring content only; no code/signature changes),
- give bullet lists a blank line + base-column indent (`Context`,
`Context.cancel_called`/`.cancelled_caught`/ `.outcome`,
`ActorNursery.cancel_called`, `query_actor`,
`open_crash_handler`),
- demote the under-short `Behaviour:` underline in `Context.cancel`
to a `**bold**` label,
- close an unbalanced backtick in the `wait_for_actor` summary and
use the `` `role`\ s `` escaped-plural idiom where a role was
pluralized (`gather_contexts`, `mk_pdb`, `MsgCodec`, msg `Error`,
`open_context_from_portal`),
- make the `|_` method-tree in `ContextCancelled.canceller` a
literal block (the bare `|` was read as a substitution ref),
- same blank-line fix for the `#318` entry in `NEWS.rst`.
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Add a small config with a manually specified version key for now.
Fix up some changelog contents from last release and bump our `setup.py`
version to an `.alpha2.dev0`.
Resolves#227