add doc

Signed-off-by: Long Nguyen <n.h.long.9697@gmail.com>

Author: nhlong9697

Documentation/git-psuh.adoc

@@ -0,0 +1,31 @@
+git-psuh(1)
+===========
+
+NAME
+----
+git-psuh - Delight users' typo with a shy horse
+
+
+SYNOPSIS
+--------
+[verse]
+'git-psuh [<arg>...]'
+
+DESCRIPTION
+-----------
+this program is cool
+
+OPTIONS[[OPTIONS]]
+------------------
+-n::
+--dry-run::
+        Don't actually remove any objects, only show those that would have been
+        removed.
+
+OUTPUT
+------
+...
+
+GIT
+---
+Part of the git[1] suite

builtin/psuh.c

@@ -38,7 +38,7 @@ int cmd_psuh(int argc, const char **argv,
 
 	printf(_("Your current branch: %s\n"), status.branch);
 
-	c = lookup_commit_reference_by_name("origin/master");
+	c = lookup_commit_reference_by_name("refs/heads/psuh");
 
 	if (c != NULL) {
 		pp_commit_easy(CMIT_FMT_ONELINE, c, &commitline);