Show percent with a decimal point #317
Description
With solid percents we can miss minor regressions or improvements but like this
those can be easily noticed
change is simple, both cases of `&format!("{:.0}%", match_percent.floor()),` in symbol_diff.rs to `&format!("{:.2}%", match_percent),`
but I haven't made a PR as maybe there's opposition to this change or maybe it would be preferred to make it a toggle?
If a toggle, then I'm not sure how i would implement that