add docs for MatchUnvalidated, PathMatchUnvalidated

README.md

@@ -89,6 +89,19 @@ Note: users should _not_ count on the returned error,
 `doublestar.ErrBadPattern`, being equal to `path.ErrBadPattern`.
 
 
+### MatchUnvalidated
+
+```go
+func MatchUnvalidated(pattern, name string) bool
+```
+
+MatchUnvalidated can provide a small performance improvement if you don't care
+about whether or not the pattern is valid (perhaps because you already ran
+`ValidatePattern`). Note that there's really only one case where this
+performance improvement is realized: when pattern matching reaches the end of
+`name` before reaching the end of `pattern`, such as `Match("a/b/c", "a")`.
+
+
 ### PathMatch
 
 ```go
@@ -105,6 +118,20 @@ that both `pattern` and `name` are using the system's path separator. If you
 can't be sure of that, use `filepath.ToSlash()` on both `pattern` and `name`,
 and then use the `Match()` function instead.
 
+
+### PathMatchUnvalidated
+
+```go
+func PathMatchUnvalidated(pattern, name string) bool
+```
+
+PathMatchUnvalidated can provide a small performance improvement if you don't
+care about whether or not the pattern is valid (perhaps because you already ran
+`ValidatePattern`). Note that there's really only one case where this
+performance improvement is realized: when pattern matching reaches the end of
+`name` before reaching the end of `pattern`, such as `Match("a/b/c", "a")`.
+
+
 ### GlobOption
 
 Options that may be passed to `Glob`, `GlobWalk`, or `FilepathGlob`. Any number