fix: Make license documentation consistent

[calvinballing]

Make license documentation consistent

Dictionaries (update license info): de_DE, es_ES, pl_PL

Description

In each of these dictionaries, there are the following:

1. a LICENSE file
2. a license listed in package.json
3. a license referenced in the README.

In these three dictionaries, (1) and (2) match, but (3) did not, and instead said MIT. This PR does not change the license the dictionaries are released under, but does fix the documentation in the READMEs so that (3) matches (1) and (2).

References

n/a

Fix links

Additionally, this changes some relative links to hard-coded URLs, so that they will work in their NPM packages:

Dictionaries (update links): cs_CZ, de_DE, en_AU, en_CA, en_GB, en_GB-MIT, en_US, es_ES, nl_NL, pl_PL, pt_BR, pt_PT, ru_RU, sk_SK, sl_SI

Checklist

• By submitting this issue, you agree to follow our
  Code of Conduct
• Verify that the title starts with the correct prefix:
  • fix: - for minor changes like adding words or fixing spelling issues.
  • feat: - for a significant change like adding a whole new set of words to a dictionary.
  • feat!: - for breaking changes, like file format or licensing changes.
  • chore: - for changes that do not impact the content of dictionaries.

[Jason3S]

Links in the dictionary READMEs need to be a full URL, since they get published to NPM as is and will just link to a 404.

Like: https://github.com/streetsidesoftware/cspell-dicts/blob/main/dictionaries/de_DE/src/German_de_DE.txt

[calvinballing]

I had copied this pattern from another README, so I've also gone through and updated the other READMEs that were the same way

[Jason3S]

Thank you.

[Jason3S]

@calvinballing,

Thank you.

This is more of a doc change than a feature. I'll mark it as a fix so they get published, but it is not a significant enough change to warrant a minor version bump.