stemming issue for certain words e.g. providing -> provid

[tk3369]

Some words are not converted properly. Probably a libstemmer issue but that repo doesn't seem to be active so I'm posting here :-)

julia> sm = TextAnalysis.stemmer_for_document(StringDocument("hello"))
Stemmer algorithm:english encoding:UTF_8

julia> stem(sm, "coming")
"come"

julia> stem(sm, "coding")
"code"

julia> stem(sm, "providing")
"provid"

julia> stem(sm, "improvising")
"improvis"

julia> stem(sm, "pursuing")
"pursu"

[aviks]

Not sure what we can do about this. Everyone just seems to use the Snowball stemmer.

[rssdev10]

https://snowballstem.org/ and a wrapper https://github.com/JuliaText/Snowball.jl