documentation: add tutorial for first contribution

diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 3bd83a7cbdd9d62c9b10057bd4bf3f03d57b1085..0cd87ddeff205ac6b5a92260f690e642f16d0875 100644 (file)
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -9,7 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'git branch' [--color[=<when>] | --no-color] [-r | -a]
-       [--list] [-v [--abbrev=<length> | --no-abbrev]]
+       [--list] [--show-current] [-v [--abbrev=<length> | --no-abbrev]]
        [--column[=<options>] | --no-column] [--sort=<key>]
        [(--merged | --no-merged) [<commit>]]
        [--contains [<commit]] [--no-contains [<commit>]]
@@ -160,6 +160,10 @@ This option is only applicable in non-verbose mode.
        branch --list 'maint-*'`, list only the branches that match
        the pattern(s).
 
+--show-current::
+       Print the name of the current branch. In detached HEAD state,
+       nothing is printed.
+
 -v::
 -vv::
 --verbose::