Pensieve: update the C page.

Author: paveloom

content/pensieve/c.md

@@ -53,4 +53,5 @@ Read more on [Wikipedia](https://en.wikipedia.org/wiki/C_(programming_language))
 - [2017] [How to Write Portable C Without Complicating Your Build](https://nullprogram.com/blog/2017/03/30)
 - [2017] [OpenMP and pwrite()](https://nullprogram.com/blog/2017/03/01)
 - [2015] [Implementing smart pointers for the C programming language](https://snai.pe/posts/c-smart-pointers)
+- [2014] [C Object Oriented Programming](https://nullprogram.com/blog/2014/10/21)
 - [2012] [What’s to love about C?](https://mortoray.com/whats-to-love-about-c)