changed to Unlicense, added license file

.gitignore

@@ -4,3 +4,4 @@
 !/go.mod
 !/go.sum
 !/readme.md
+!/unlicense

readme.md

@@ -19,7 +19,7 @@ First tagged release.
 
 ## License
 
-https://en.wikipedia.org/wiki/WTFPL
+https://unlicense.org
 
 ## Misc
 

refut.go

@@ -168,7 +168,7 @@ func TraverseStructType(val interface{}, fun func(reflect.StructField, []int) er
 
 /*
 Variant of `TraverseStructType` that takes a `reflect.Type` as the input. See
-`TraverseStruct` for the documentation.
+`TraverseStructType` for the documentation.
 
 If the input is not a struct type, or if the callback is nil, this function
 panics. Returned errors are always from the callback.

unlicense

@@ -0,0 +1,24 @@
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>