Draft part of lens post

I tried using OS X's dictation. It didn't go well.
Draft new version of lens post
Merge branch 'master' into haskell-lenses
Merge branch 'master' into haskell-lenses
Remove obsolete layout
Draft lens post
Edit lens post
Optimize image
Switch from GitHub-flavored Markdown to Liquid
Use numbers for link references
Format plain text
Fix typo
Publish lens post
Merge branch 'haskell-lenses'