Word frequency lists

Source: FrequencyWords by Hermit Dave (https://github.com/hermitdave/FrequencyWords), generated from OpenSubtitles.
Changes: trimmed to the 10,000 most frequent words made only of letters, one word per line, most frequent first;
contraction fragments, words that public-domain books almost always write with a capital letter (names of people and places)
and words that a Hunspell spell checker does not accept in lower case (https://github.com/wooorm/dictionaries) were left out.
Licence: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/).
These files stay under that licence; the rest of the app is not covered by it.