Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/git-rev-parse.txt |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

As I'm not very good at English, please correct any mistake I made

diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 2f1306c..f8f4920 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -119,11 +119,17 @@ syntax.
   name the same commit object if there are no other object in
   your repository whose object name starts with dae86e.
 
+* The result of `git-describe`
+
 * A symbolic ref name.  E.g. 'master' typically means the commit
   object referenced by $GIT_DIR/refs/heads/master.  If you
   happen to have both heads/master and tags/master, you can
   explicitly say 'heads/master' to tell git which one you mean.
 
+* A colon at the beginning, followed by path name to specify
+  a file in index. If you want to specify a file in a stage,
+  use expression ':[0-3]:<path>' instead.
+
 * A suffix '@' followed by a date specification enclosed in a brace
   pair (e.g. '\{yesterday\}', '\{1 month 2 weeks 3 days 1 hour 1
   second ago\}' or '\{1979-02-26 18:30:00\}') to specify the value
@@ -156,6 +162,9 @@ syntax.
   and dereference the tag recursively until a non-tag object is
   found.
 
+* A suffix ':' followed by path name to specify a specific file
+  in that commit/tag/tree.
+
 Here is an illustration, by Jon Loeliger.  Both node B and C are
 a commit parents of commit node A.  Parent commits are ordered
 left-to-right.
-- 
1.4.3.rc2.g0503-dirty
-
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