[elpa] externals/ztree c54425a 21/23: Updated README for issue #65.

[Stefan Monnier]

branch: externals/ztree
commit c54425a094353ec40a8179f9eab3596f76c6cf94
Author: Alexey Veretennikov <alexey.veretennikov@gmail.com>
Commit: Alexey Veretennikov <alexey.veretennikov@gmail.com>

    Updated README for issue #65.
---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index d7ac308..1a2274f 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,16 @@ One also could turn on unicode characters to draw the tree 
with instead of norma
 
 The variable `ztree-diff-consider-file-permissions` (which is `nil` by 
default) if set to `t` allows to compare file attributes as well, the files 
will be considered different if they have different mode.
 
+The special variable `ztree-diff-additional-options`
+introduced to provide an additional arguments
+to the 'diff' tool.
+For example one could specify
+```
+(setq ztree-diff-additional-options '("-w" "-i"))
+```
+to ignore case differences and whitespace differences.
+
+
 ### Screenshots
 
 ![ztreediff 
emacsx11](https://github.com/fourier/ztree/raw/screenshots/screenshots/emacs_diff_xterm.png
 "Emacs in xterm with ztree-diff")