N16: Survey reminder (#374)

* Add survey reminder

* N16: Survey: Fmt tweaks

Co-authored-by: Andrey Lesnikov <ozkriff@gmail.com>

Author: erlend-sh

content/posts/newsletter-016/index.md

@@ -32,6 +32,7 @@ Feel free to send PRs about your own projects!
 
 Table of contents:
 
+- [Last Call for Rust GameDev Survey](#last-call-for-rust-gamedev-survey)
 - [Game Updates](#game-updates)
 - [Learning Material Updates](#learning-material-updates)
 - [Library & Tooling Updates](#library-tooling-updates)
@@ -61,6 +62,16 @@ _Discussions:
 If needed, a section can be split into subsections with a "------" delimiter.
 -->
 
+## Last Call for [Rust GameDev Survey][survey]
+
+Our annual [Rust Game Development Ecosystem Survey][survey] will be closed
+on Sunday at the end of this week, 6. December 2020.
+It'll only take 10 minutes, and your responses help us
+better understand the state of our ecosystem and where we
+should try to focus our collective efforts.
+
+[survey]: https://surveymonkey.com/r/F2JYRFF
+
 ## Game Updates
 
 ### [A/B Street][abstreet]