Add get expiration dates in deribit api

examples/max_pain_readme.rst

@@ -1,19 +0,0 @@
-## Max Pain Calculation for Deribit Options
-
-This feature, which calculates the max pain point for options traded on the Deribit exchange using cryptofeed library.
-
-- Functions in the api module for fetching options data from Deribit. [commit](https://pikers.dev/pikers/piker/commit/da55856dd2876291f55a06eb0561438a912d8241)
-
-- Compute the max pain point based on open interest data using deribit's api. [commit](https://pikers.dev/pikers/piker/commit/0d9d6e15ba0edeb662ec97f7599dd66af3046b94)
-
-### How to test it?
-
-**Before start:** in order to get this working with `uv`,  you **must** use my `tractor` [fork](https://pikers.dev/ntorres/tractor/src/branch/aio_abandons) and this branch: `aio_abandons`, the reason is that I cherry-pick the `uv_migration` that guille made, for some reason that a didn't dive into, in my system y need tractor using `uv` too. quite hacky I guess.
-
-1. `uv lock`
-
-2. `uv run --no-dev python examples/max_pain.py`
-
-3. A message should be display, enter one of the expiration date available.
-
-4. The script should be up and running.