README: replace du code example's tab prefix with spaces

The command wasn't rendered as code before this change.

Signed-off-by: Mateusz Konieczny <matkoniecz@gmail.com>
[rlb@defaultvalue.org: adjust commit message]
Reviewed-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/README.md b/README.md
index f7455a63e186876d1c5a74ab9787ded79620299d..4dac774b507073603be9e7afcac0ec74a97d8e8b 100644 (file)
--- a/README.md
+++ b/README.md
@@ -296,7 +296,7 @@ Using bup
  - Look at how little extra space your second backup used on top of
    the first:
  
  - Look at how little extra space your second backup used on top of
    the first:
  

-       du -s ~/.bup
+        du -s ~/.bup

        
  - Restore the first tar backup again (the ~1 is git notation for "one
    older than the most recent"):
        
  - Restore the first tar backup again (the ~1 is git notation for "one
    older than the most recent"):