v0.3.8

TravelingSalesmanExact v0.3.8

Diff since v0.3.7

Merged pull requests:

• use Asciicast.jl for gif in docs (#17) (@ericphanson)
• enable color (#18) (@ericphanson)
• CompatHelper: bump compat for "UnicodePlots" to "2" (#19) (@github-actions[bot])
• Update docs (#21) (@ericphanson)
• Bump version (#22) (@ericphanson)