contributing: Let the style sheet through for verbatim data
contributing: Let the style sheet through for verbatim data

One of the commit messages was using 8 spaces indentation, the other one
was using tabs. Github md renderer/style sheet was using 4 spaces to
represent a tab in verbatim data.

The result was that the two commit messages weren't properly aligned.

Changed it to remove manual indentation and let the renderer/style sheet
decide.

An alternative could be to always indent with the same character(s), say
4 spaces so the md "source" looks good as well.

Signed-off-by: Damien Lespiau <64bd3cb94f359c1a3ce68dae5e26b40578526277@intel.com>

wcwxyz/ciao,01org/ciao,tpepper/ciao,ciao-project/ciao,markdryan/ciao,rbradford/ciao,ciao-project/ciao,obedmr/ciao,wcwxyz/ciao,mcastelino/ciao,tpepper/ciao,kaccardi/ciao,mcastelino/ciao,wcwxyz/ciao,obedmr/ciao,matthewrsj/ciao,mrkz/ciao,markdryan/ciao,tpepper/ciao,erick0z/ciao,01org/ciao,rbradford/ciao,mrkz/ciao,matthewrsj/ciao,mcastelino/ciao,erick0z/ciao,obedmr/ciao,erick0z/ciao,matthewrsj/ciao,kaccardi/ciao,mrkz/ciao