Fix console blocks in config.asc

Author: crd

book/08-customizing-git/sections/config.asc

@@ -66,7 +66,7 @@ Now, no matter what is set as your default shell editor, Git will fire up Emacs
 If you set this to the path of a file on your system, Git will use that file as the default message when you commit.
 For instance, suppose you create a template file at `~/.gitmessage.txt` that looks like this:
 
-[source]
+[source,text]
 ----
 subject line
 
@@ -85,7 +85,7 @@ $ git commit
 
 Then, your editor will open to something like this for your placeholder commit message when you commit:
 
-[source]
+[source,text]
 ----
 subject line
 
@@ -150,7 +150,7 @@ If your preferred editor is Emacs or Vim, you know about files that end with a `
 This setting lets you write a kind of global `.gitignore` file.
 If you create a `~/.gitignore_global` file with these contents:
 
-[source]
+[source,ini]
 ----
 *~
 .DS_Store
@@ -221,7 +221,10 @@ Each of these can be set to `true`, `false`, or `always`:
 In addition, each of these has subsettings you can use to set specific colors for parts of the output, if you want to override each color.
 For example, to set the meta information in your diff output to blue foreground, black background, and bold text, you can run
 
-  $ git config --global color.diff.meta "blue black bold"
+[source,console]
+----
+$ git config --global color.diff.meta "blue black bold"
+----
 
 You can set the color to any of the following values: `normal`, `black`, `red`, `green`, `yellow`, `blue`, `magenta`, `cyan`, or `white`.
 If you want an attribute like bold in the previous example, you can choose from `bold`, `dim`, `ul` (underline), `blink`, and `reverse` (swap foreground and background).