Add see also section to posts footer (#152)

Joseph Ting

11.21.2019 27e83b1e5a9d8b7bbd42d202bd5ef57adcce659b

 exampleSite/content/posts/theme-demo.md

@@ -4,7 +4,7 @@
description = "The post demonstrates features of the coder theme."
images = ["/images/N90.jpg"]
math = "true"

series = ["Theme", "Hugo"]
+++

## Style Demo