Fix example in path expressions table
Fix example in path expressions table

Since change I1ddc8bf32 '*' is also matching '/'. Hence '*.md' cannot be
used to match md files only in the current folder, but it is matching md
files in the current folder and all subfolders.

Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>
Change-Id: If5df1e556085ab6db26afb42da0ff2d363c832c3

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