chore(tazjin): Move my presentations to my user directory

Change-Id: I72b25680e7167c3a55477111c28b1d4936c60e2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/606
Reviewed-by: tazjin <mail@tazj.in>

users/tazjin/presentations/erlang-2016/src/hello_server.erl

@@ -0,0 +1,12 @@
+-module(hello_server).
+-export([start_server/0, server/0]).
+
+start_server() ->
+    spawn(fun() -> server() end).
+
+server() ->
+    receive
+        {greet, Name} ->
+            io:format("Hello ~s!~n", [Name]),
+            hello_server:server()
+    end.