1 files changed, 27 insertions, 4 deletions
diff --git a/vendor/github.com/shurcooL/vfsgen/README.md b/vendor/github.com/shurcooL/vfsgen/README.md
index a7781cb1..659a0a03 100644
--- a/vendor/github.com/shurcooL/vfsgen/README.md
+++ b/vendor/github.com/shurcooL/vfsgen/README.md
@@ -26,22 +26,43 @@ go get -u github.com/shurcooL/vfsgen
 Usage
 -----
 
-This code will generate an assets_vfsdata.go file with `var assets http.FileSystem = ...` that statically implements the contents of "assets" directory.
+Package `vfsgen` is a Go code generator library. It has a `Generate` function that takes an input filesystem (as a [`http.FileSystem`](https://godoc.org/net/http#FileSystem) type), and generates a Go code file that statically implements the contents of the input filesystem.
+
+For example, we can use [`http.Dir`](https://godoc.org/net/http#Dir) as a `http.FileSystem` implementation that uses the contents of the `/path/to/assets` directory:
 
 ```Go
-var fs http.FileSystem = http.Dir("assets")
+var fs http.FileSystem = http.Dir("/path/to/assets")
+```
 
+Now, when you execute the following code:
+
+```Go
 err := vfsgen.Generate(fs, vfsgen.Options{})
 if err != nil {
 	log.Fatalln(err)
 }
 ```
 
+An assets_vfsdata.go file will be generated in the current directory:
+
+```Go
+// Code generated by vfsgen; DO NOT EDIT.
+
+package main
+
+import ...
+
+// assets statically implements the virtual filesystem provided to vfsgen.Generate.
+var assets http.FileSystem = ...
+```
+
 Then, in your program, you can use `assets` as any other [`http.FileSystem`](https://godoc.org/net/http#FileSystem), for example:
 
 ```Go
 file, err := assets.Open("/some/file.txt")
-if err != nil { ... }
+if err != nil {
+	return err
+}
 defer file.Close()
 ```
 
@@ -49,6 +70,8 @@ defer file.Close()
 http.Handle("/assets/", http.FileServer(assets))
 ```
 
+`vfsgen` can be more useful when combined with build tags and go generate directives. This is described below.
+
 ### `go generate` Usage
 
 vfsgen is great to use with go generate directives. The code invoking `vfsgen.Generate` can go in an assets_generate.go file, which can then be invoked via "//go:generate go run assets_generate.go". The input virtual filesystem can read directly from disk, or it can be more involved.
@@ -175,4 +198,4 @@ This package was originally based on the excellent work by [@jteeuwen](https://g
 License
 -------
 
--	[MIT License](https://opensource.org/licenses/mit-license.php)
+-	[MIT License](LICENSE)