graph: add commit graph design document

diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt
index 2669b87c9d59a80e5e4f3d0ade1893ec8e5b3f30..dc41957afab25d08cf6fc530cde97b91bed8e06e 100644 (file)
--- a/Documentation/blame-options.txt
+++ b/Documentation/blame-options.txt
@@ -77,7 +77,7 @@ include::line-range-format.txt[]
        terminal. Can't use `--progress` together with `--porcelain`
        or `--incremental`.
 
--M|<num>|::
+-M[<num>]::
        Detect moved or copied lines within a file. When a commit
        moves or copies a block of lines (e.g. the original file
        has A and then B, and the commit changes it to B and then
@@ -93,7 +93,7 @@ alphanumeric characters that Git must detect as moving/copying
 within a file for it to associate those lines with the parent
 commit. The default value is 20.
 
--C|<num>|::
+-C[<num>]::
        In addition to `-M`, detect lines moved or copied from other
        files that were modified in the same commit.  This is
        useful when you reorganize your program and move code