updated config as per suggestions in #1

Author: rahul286

README.md

@@ -32,10 +32,9 @@ Link target will be that page's source file on Github or Gitlab or any repo.
 ```
 **Note**: Above snippet can be used as complete `book.json` file, if your book doesn't have one yet.
 
-    **Github/Gitlab**: In string `...REPO/edit/BRANCH...`, you may replace `edit` with `tree` if you want source file to open in read-mode, rather than edit-mode directly on github/gitlab.
+**Github/Gitlab**: In string `...REPO/edit/BRANCH...`, you may replace `edit` with `tree` if you want source file to open in read-mode, rather than edit-mode directly on github/gitlab.
 
-
-    ### Step #2 - gitbook commands
+### Step #2 - gitbook commands
 
 1. Run `gitbook install`. It will automatically install `edit-link` gitbook plugin for your book. This is needed only once.
 2. Build your book (`gitbook build`) or serve (`gitbook serve`) as usual.