diff --git a/regex/doc.go b/regex/doc.go
new file mode 100644
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@@ -0,0 +1,9 @@
+/*
+Package regex implements an NFA-based engine to search for
+regular expressions in strings. The engine does not use backtracking,
+and is therefore not vulnerable to catastrophic backtracking. The regex
+syntax supported (a variation of Golang's) is specified in the Syntax section.
+
+*/
+
+package regex