Release Twiddle version 2.0.0-alpha.0.
Release Twiddle version 2.0.0-alpha.0.

title: Release Twiddle version 2.0.0-alpha.0.
label: release

 * Add chicklets and links to `README.md`. Closes #39.
 * Convert `README.md` to Markdown. See #39.
 * Update `.gitignore`. See #39.
 * Add `.npmignore`. See #39.
 * Build with Actions, ship coverage to Codecov. Closes #37. Closes #38.
 * Build with only Node.js 12 on Travis CI. Closes #40.
 * Convert to `async`/`await`. Closes #36.
 * Update `LICENSE` for 2020. Closes #35.
 * Use build utilities in `PATH`.
 * Do not build with Node.js 4 on Travis CI.
 * Do not build with Node.js 0.12 on Travis CI.
 * Do not build with Node.js 10 on Travis CI.
 * Use shorthand repository URL.
 * Update `LICENSE` date range for 2018.
 * Upgrade `proof` to 3.0.x.
 * Build with Node.js 8 on Travis CI.ush
 * Do not build with Node.js 5 on Travis CI.
 * Add Wiseguy to `.gitignore`.
 * Tidy `.gitignore`.
 * Upgrade Proof to 1.2.x.
 * Update `LICENSE` for 2017.
 * Plain text `README`.
 * Upgrade to Proof Redux.
 * Further indent `package.json`.
 * Get rid of test sub-directory.
 * Tidy `package.json`.
 * Build with latest Node.js 6 on Travis CI.
 * Build with latest Node.js 6 on Travis CI.
 * Pin dependencies to minor version.
 * Indent `package.json`.

Closes #41.

bigeasy/twiddle,bigeasy/twiddle