Concretize Files.Glob documentation (helm#1314)

Signed-off-by: Andras Kovi <[email protected]>

content/en/docs/chart_template_guide/accessing_files.md

@@ -125,40 +125,35 @@ The imported functions are:
 ## Glob patterns
 
 As your chart grows, you may find you have a greater need to organize your files
-more, and so we provide a `Files.Glob(pattern string)` method to assist in
+more, and so we provide the `.Files.Glob(pattern string)` method to assist in
 extracting certain files with all the flexibility of [glob
 patterns](https://godoc.org/github.com/gobwas/glob).
 
 `.Glob` returns a `Files` type, so you may call any of the `Files` methods on
 the returned object.
 
-For example, imagine the directory structure:
+For example, to return all Yaml files from all available directories, you have
+multiple options with Glob:
 
-```
-foo/:
-  foo.txt foo.yaml
-
-bar/:
-  bar.go bar.conf baz.yaml
+```yaml
+{{ range $path, $_ :=  .Files.Glob  "**.yaml" }}
+    {{ .Get $path }}
+{{ end }}
 ```
 
-You have multiple options with Globs:
-
+Or
 
 ```yaml
-{{ $currentScope := .}}
-{{ range $path, $_ :=  .Files.Glob  "**.yaml" }}
-    {{- with $currentScope}}
-        {{ .Files.Get $path }}
-    {{- end }}
+{{ range $path, $content :=  .Files.Glob  "**.yaml" }}
+    {{ $content | toString }}
 {{ end }}
 ```
 
 Or
 
 ```yaml
-{{ range $path, $_ :=  .Files.Glob  "**.yaml" }}
-      {{ $.Files.Get $path }}
+{{ range .Files.Glob  "**.yaml" }}
+    {{ . | toString }}
 {{ end }}
 ```
 

content/en/docs/chart_template_guide/builtin_objects.md

@@ -44,12 +44,12 @@ access in your templates.
   cannot use it to access templates, you can use it to access other files in the
   chart. See the section [Accessing Files]({{< ref
     "/docs/chart_template_guide/accessing_files.md" >}}) for more.
-  - `Files.Get` is a function for getting a file by name (`.Files.Get
+  - `Files.Get` is a function that returns the file contents as string (`.Files.Get
     config.ini`)
-  - `Files.GetBytes` is a function for getting the contents of a file as an
+  - `Files.GetBytes` is a function that returns the contents of a file as an
     array of bytes instead of as a string. This is useful for things like
     images.
-  - `Files.Glob` is a function that returns a list of files whose names match
+  - `Files.Glob` is a function that returns a list of file path, content bytes tuples whose names match
     the given shell glob pattern.
   - `Files.Lines` is a function that reads a file line-by-line. This is useful
     for iterating over each line in a file.