feat(authors): update automatically alongside semantic-release

* https://github.com/gaocegege/maintainer
  - The existing `AUTHORS.md` was created manually using this CLI app.
  - This commit automates this process to run during the CI build,
    as part of the overall `semantic-release` process.
* https://github.com/myii/maintainer
  - Using an enhanced, forked version of this app.
  - The authors are now shown in a table rather than a bulleted list.

.travis.yml

@@ -40,12 +40,19 @@ jobs:
       node_js: lts/*
       before_install: skip
       script:
+        # Update `AUTHORS.md`
+        - export MAINTAINER_TOKEN=${GH_TOKEN}
+        - go get github.com/myii/maintainer
+        - maintainer contributor
+
+        # Install all dependencies required for `semantic-release`
         - npm install @semantic-release/changelog@3 -D
         - npm install @semantic-release/exec@3 -D
         - npm install @semantic-release/git@7 -D
       deploy:
         provider: script
         skip_cleanup: true
         script:
+          # Run `semantic-release`
           - npx semantic-release@15
 

release.config.js

@@ -14,7 +14,7 @@ module.exports = {
         prepareCmd: 'sh ./update_FORMULA.sh ${nextRelease.version}',
       }],
       ['@semantic-release/git', {
-        assets: ['CHANGELOG.md', 'FORMULA'],
+        assets: ['*.md', 'FORMULA'],
       }],
       '@semantic-release/github',
   ],