Clarify fastText Model Type (#1077)
Clarify fastText Model Type (#1077)

* Clarify Fasttext Model Type

The classification and nearest_neighbors analyzers only accept
supervised models.

* added EE note

* formatting typo

Co-authored-by: ansoboleva <88632894a9e531c470067a10e46d4700ecadd961@users.noreply.github.com>
arangodb/docs,arangodb/docs,arangodb/docs,arangodb/docs