[Docs] Add wiki content to Markdown docs

[Docs] Add wiki content to Markdown docs

BUG=none
R=vapier@chromium.org, mseaborn@chromium.org

Committed: https://chromium.googlesource.com/breakpad/breakpad/+/7ed2476eea2c2a50fd40ec3e711dcb311d472753

[vapier, 2015-09-22 16:30:14]

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md
File docs/how_to_contribute.md (right):

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md#n...
docs/how_to_contribute.md:17: linux_syscall_support.h
do the _ need escaping ?

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md#n...
docs/how_to_contribute.md:18: `
should this be cuddled to the previous line ?

[Bons, 2015-09-22 16:35:11]

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md
File docs/how_to_contribute.md (right):

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md#n...
docs/how_to_contribute.md:17: linux_syscall_support.h
On 2015/09/22 16:30:14, vapier wrote:
> do the _ need escaping ?

No, not when it's within a code block.

https://codereview.chromium.org/1356253003/diff/1/docs/how_to_contribute.md#n...
docs/how_to_contribute.md:18: `
On 2015/09/22 16:30:14, vapier wrote:
> should this be cuddled to the previous line ?

Moved it to four-space indent.

[vapier, 2015-09-22 16:36:15]

lgtm

[Bons, 2015-09-22 16:36:54]

On 2015/09/22 16:36:15, vapier wrote:
> lgtm

You will have to land for me :)

[Bons, 2015-09-24 14:49:15]

On 2015/09/22 16:36:54, Bons wrote:
> On 2015/09/22 16:36:15, vapier wrote:
> > lgtm
> 
> You will have to land for me :)

gentle ping

[vapier, 2015-09-24 15:32:46]

Committed patchset #2 (id:20001) manually as
7ed2476eea2c2a50fd40ec3e711dcb311d472753 (presubmit successful).

[vapier, 2015-09-24 15:33:08]

sorry, missed your previous comment

[Mark Seaborn, 2015-10-07 19:57:28]

On 2015/09/24 15:32:46, vapier wrote:
> Committed patchset #2 (id:20001) manually as
> 7ed2476eea2c2a50fd40ec3e711dcb311d472753 (presubmit successful).

I think you committed this to the wrong repo.  These are linux-syscall-support
docs.  The Rietveld review has the expected "Base URL:
https://chromium.googlesource.com/linux-syscall-support.git@master" field, but
the change was committed to Breakpad.

I noticed because you sent me a very similar change for review
(https://codereview.chromium.org/1393083002/). :-)

[vapier, 2015-10-07 21:03:34]

sorry about that.  the two CLs coming in at the same time w/similar names
confused me and i thought there was only breakpad being posted.

i updated LSS (and merged the content here) into this CL:
https://codereview.chromium.org/1393083002/

and i reverted this one in breakpad here:
https://codereview.chromium.org/1395743002