update optional from instruction
Merge pull request #43 from saltysnacks/master

various doc updates
some minor language fixes
minor change in language
rename tours to samples
update folder names from sample_x to sample
add 3 sections to Tour
add subsections to docs.yaml
spacing/lang in tour
Update MSI tour text
Update MSI tour text
Merge branch 'master' of github.com:spoonapps/docs
Edits to tour
Update index to match text
cmd spacing/format in samples\helloworld
spacing in "transitioning from docker"
restructuring from reference to getting started

move samples to getting started, change "sample x" to "walkthrough x"
and move xappl configuration to its own subsection in reference
more renaming/restructuring

remove samples from reference in docs.yaml
move studio and server sections

studio to build, server to deploy
studio integration to build