cheat-sheet.md: Mention the default root for 'git branch ...'

From git-branch(1):

  git branch [options] <branchname> [<start-point>]

diff --git a/cheat-sheet.md b/cheat-sheet.md
index c17f8631cf68d95a9e80b5785f8d2bb3b1700ebe..6c71bbfbcc5a7cd5bac0a111cd24306d57f04afe 100644 (file)
--- a/cheat-sheet.md
+++ b/cheat-sheet.md
@@ -132,7 +132,8 @@ Branches
 
         $ git branch
 
-* Make a new branch (e.g. `some-feature`):
+* Make a new branch (e.g. `some-feature`) based on the current `HEAD`
+  commit:
 
         $ git branch some-feature