README: `infer_edgelist()` example fails

[cemacrr]

The infer_edgelist() example in the README.md file fails:

> edgelist <- infer_edgelist(
  data = traits,
  cat_combo_list = feeding_rules,
  col_taxon = "species",
  certainty_req = "all",
  allow_self = FALSE
)

[1] "feeding"
[1] "motility"
[1] "habitat"
[1] "size"
Error in infer_edgelist(data = traits, cat_combo_list = feeding_rules,  :
  object 'fw_match_traits3' not found