Macros guides stub

It is far from being ready for master.
Merge pull request #95 from frenchy64/master

New Tutorial and core.typed fixes
core.typed: Fix Limitations formatting, add datatypes/protocols
Merge branch 'master' of github.com:clojuredocs/cds
Add Hole-driven tutorial
core.typed: Add IRC Bot example
Update ann-datatype and ann-protocol syntax
core.typed: Notes on protocols and datatypes
Add mentions about ClojureTV, podcasts to Community page.
Merge branch 'master' into podcasts
Merge pull request #97 from gsnewmark/podcasts

Links to ClojureTV YouTube channel, podcasts about Clojure
Remove blip.tv link
Remove company-specific podcast
Stop recommending clojure.org for documentation

The whole reason why CDS exists is because clojure.org docs are
hopelessly expert-oriented and only a few people can contribute
to it.
Merge branch 'master' into macros
Don't link to a nearly duplicate Community page; the Design one is probably of little interest to beginners
Don't link to a nearly duplicate Community page; the Design one is probably of little interest to beginners
Unify title in both layouts
Move Security section down
Unify title in both layouts