I didn't have cmake installed on arch, and my build failed. Thought it should be included in the book

Since Bell Labs has died, the Plan9 project website only exists at a
mirror on 9p.io

"Null-terminated" is the more common term, and I think better suited to denote that the string (being the object) is being terminated by a null. Feel free to edit my commit in that regard, if you prefer the current ending.

"a URL…" being singular.

The "Programs and Libraries" link in TOC doesn't work, this should fix it.

I'm guessing, question marks indicate where I know I'm guessing.

new name of mac's system

In section 3.1 'Preparing Redox', the book suggests using the cross compilers from glendc/gcc_cross_compilers. These no longer work, and are not being used in the bootstrap.sh script from the redox-os/redox repo. This closes #84.

Current output is \$identifier.
Additional quote removed
Additional # stdout added for John example

mdBook uses pulldown-cmark. pulldown-cmark implements CommonMark. CommonMark, unlike Github Markdown, needs a space after # for ATX style headers. See http://spec.commonmark.org/0.27/#atx-headings

Elaborate the use of the bootstrap script. Include a word of caution in case dependencies already exist on the system and are skipped by bootstrap. Restructure the chapter to better distinguish between a manual setup and a script based setup.

closes #78

Signed-off-by: Jerome Jutteau <mojo@couak.net>

Signed-off-by: Jerome Jutteau <mojo@couak.net>