False positive: "homeschool(ed)" isn't in the dictionary

**What got flagged?**
homeschool(ed)

**Why is this incorrect?**
It's in most dictionaries.

https://www.collinsdictionary.com/dictionary/english/homeschool
https://dictionary.cambridge.org/dictionary/english/homeschool
https://en.wiktionary.org/wiki/homeschooled

Start by reading the dictionary and spell-checking entry points in the Harper repository to find where accepted words are defined and checked. Add “homeschool” and “homeschooled” to the appropriate dictionary data, then run the relevant tests to confirm both forms are no longer flagged.

Written by the indexing model from the issue text.