Add a note regarding the context system variable
Clean-up whitespace
Merge pull request #7 from bertjwregeer/docs/note_context

Docs: Add a note regarding the context to _context renaming
cadge docs from to-be-removed renderers and templates chapter sections in pyramid, use :ref: instead of direct URL links, add documentation for more settings
document reloading setting
add narrative automatically-reloading-templates section
remove label
Fix link to Mako Context Variables.