README.md:better markdown syntax for lists

[RandyMcMillan]

[RandyMcMillan]

This doesnt effect how README.md is rendered on GitHub.com. It enables correct list rendering in other markdown clients.

[RandyMcMillan]

Before:

After:

[RandyMcMillan]

6d84b96: update per suggestions

view rendered README.md: https://github.com/bitcoindevkit/bdk-cli/blob/6d84b9601a060e7765aaf819ad30a5201de14195/README.md

feel free to cherry-pick 6d84b96 and close if 854f072 isn't desirable.

[thunderbiscuit]

@RandyMcMillan if you can give me commit access to your PR I'll be able to push some small fixes and get this merged. I'm trying to clean up some of the PRs and move stuff along, sorry it's slow going.

It's apparently a small checkbox that says "Allow edits by maintainers".

[RandyMcMillan]

if there is something else I need to do - please tell me.

[thunderbiscuit]

Actually this will (I think) work, but in general you don't need to grant complete access to your repo for maintainers to be able to push commits on a PR.

I think this is the article to take a look at: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork

[thunderbiscuit]

@notmandatory I don't have permissions to merge this because of the protections on the master branch. The PR currently fails the CI but this is a docs PR and I don't want to get into fixing all the pins on the dependencies here.

[notmandatory]

I think we need to do a couple things before we can merge this PR:

1. publish release bdk 0.29.1 which has MSRV fixes or just bump MSRV to 1.63 and fix CI in a 0.30.0 version
2. update bdk-cli to use bdk 0.29.1 and fix any other msrv issues