1. Docs: Final cleanup for CDD source.
    
       - Fix rowspan in table in section 2.1.
       - Put markdown links on a single line.
       - Escape parentheses in URLs.
       - Fix some internal links with dashes instead of underscores.
       - Replace tabs with spaces.
       - Other misc. cleanup.
    
    Bug: 32070486
    Change-Id: Ie44202b5a0bfe7133505880a0a9c74f08a9bac1f
    
  2. Docs: Add CDD docs and the build script, and test examples
    
    Bug: 25199595
    This is based on the amended final CDD for M, hosted as commit
    1846a9622485855d572705a7972116caf0be3669 on the AOSP master branch.
    
    Change-Id: Ic3bd96cd652f7d7b13def03a4ca1f04645c34255
    
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