Fix resource not accessible by personal access token error #124

Problem

The current token documentation...

Tokens

For all actions, the tool will ask you to input a GitHub token. To obtain this token:

1. Go to https://github.com/settings/tokens
2. Click "Generate New Token"
3. Check on repo
4. Copy/paste the token provided when the tool asks for it.

...may be outdated.

When going to set up a token, GitHub currently offers a new token generation tool, distinguishing one as (Classic).

This is probably the instructions set noted above.

The non-Classic generate tool offers more granular control over token permissions.

Proposed resolution

Provide updated instructions to acquire the correct permissions for the token.

Additional notes

Using the non-Classical generate tool, I experienced the following error:

RequestError [HttpError]: Resource not accessible by personal access token
    at /usr/local/lib/node_modules/github-csv-tools/node_modules/@octokit/request/dist-node/index.js:122:21
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async Job.doExecute (/usr/local/lib/node_modules/github-csv-tools/node_modules/bottleneck/light.js:405:18) {
  status: 403,