feat: all --octoherd-* flags are now optional (#3)

BREAKING CHANGE: Repositories can no longer be passed as positional argument, use the \`--octoherd-repos\` (or \`-R\`) CLI flag instead.

Before:

```
npx @octoherd/script-add-octoherd-cli-to-script "@octokit/*"
```

After

```
npx @octoherd/script-add-octoherd-cli-to-script --octoherd-repos "@octokit/*"
```

Or do not set `--octoherd-repos` at all, in which case the user will be prompted.

Co-authored-by: Gregor Martynus <39992+gr2m@users.noreply.github.com>

Author: octoherd[bot]

README.md

@@ -5,11 +5,17 @@
 ## Usage
 
 ```
-npx @octoherd/script-add-octoherd-cli-to-script \
-  --octoherd-token 0123456789012345678901234567890123456789 \
-  "octoherd/*"
+npx @octoherd/script-add-octoherd-cli-to-script
 ```
 
+## Options
+
+| option                       | type             | description                                                                                                                                                                                                                                 |
+| ---------------------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `--octoherd-token`, `-T`     | string           | A personal access token ([create](https://github.com/settings/tokens/new?scopes=repo)). Script will create one if option is not set                                                                                                         |
+| `--octoherd-repos`, `-R`     | array of strings | One or multiple space-separated repositories in the form of `repo-owner/repo-name`. `repo-owner/*` will find all repositories for one owner. `*` will find all repositories the user has access to. Will prompt for repositories if not set |
+| `--octoherd-bypass-confirms` | boolean          | Bypass prompts to confirm mutating requests                                                                                                                                                                                                 |
+
 ## License
 
 [ISC](LICENSE.md)