Adds the validation tags from the Go Playground
diff --git a/Well-known-struct-tags.md b/Well-known-struct-tags.md
index f668cbd..fa3db8c 100644
--- a/Well-known-struct-tags.md
+++ b/Well-known-struct-tags.md
@@ -36,4 +36,5 @@
spanner | https://godoc.org/cloud.google.com/go/spanner
bson | https://godoc.org/labix.org/v2/mgo/bson
gorm | https://godoc.org/github.com/jinzhu/gorm
-yaml | https://godoc.org/gopkg.in/yaml.v2
\ No newline at end of file
+yaml | https://godoc.org/gopkg.in/yaml.v2
+validate | https://github.com/go-playground/validator
\ No newline at end of file
