Update README.md

Author: joshthompson

README.md

@@ -2,13 +2,13 @@
 My solutions to [Advent of Code](https://adventofcode.com/) puzzles
 
 # 2020
-Work in progress - currently completing them as they get released but perhaps I get distracted at some point
+Complete
 
 # 2019
-Doing concurrently with 2020 puzzles
+Work in progress
 
 # 2018
-Didn't particilate
+No started
 
 # For 2015 and 2017 solutions (unfinished)
 
@@ -18,4 +18,4 @@ Didn't particilate
 * Visit `http://localhost:1990/` in a browser that supports ES6
 
 # 2016
-Didn't particilate
+No started