diff --git a/vendor/github.com/rivo/uniseg/doc.go b/vendor/github.com/rivo/uniseg/doc.go
new file mode 100644
index 0000000..60c737d
--- /dev/null
+++ b/vendor/github.com/rivo/uniseg/doc.go
@@ -0,0 +1,8 @@
+/*
+Package uniseg implements Unicode Text Segmentation according to Unicode
+Standard Annex #29 (http://unicode.org/reports/tr29/).
+
+At this point, only the determination of grapheme cluster boundaries is
+implemented.
+*/
+package uniseg