Use em dashes in typeface attribution
Committed f5525b
--- a/README.md
+++ b/README.md
## Typeface Attribution
-Ubuntu; Canonical, Dalton Maag; Ubuntu Font Licence v1.0
-Fleuron; Mickaël Emile, Yves-Gabriel So; SIL Open Font License v1.1
+Ubuntu — Canonical, Dalton Maag — Ubuntu Font Licence v1.0
+Fleuron — Mickaël Emile, Yves-Gabriel So — SIL Open Font License v1.1