Consolas > Courier New for monospace docs font [skip ci]

(cherry picked from commit ab690586d391c48a8c9561ff64aa97ecf8e28af5)
0.11-rc blog post

(cherry picked from commit b8cc3f510a61b6d89c21a9a0cac969346f28724c)
Make code in headers not giant

(cherry picked from commit 4a66260b2c36f267a31cd7610fc652cfa7db6f8f)