Adding 2019.1 (v3.3) to docs

Chris Shin · web-flow · commit 0d6ffdef2374 · 2019-02-20T08:25:49.000-08:00
diff --git a/docs/versions.md b/docs/versions.md
@@ -64,3 +64,4 @@ The current version of TSC only supports the following REST API and Tableau Serv
 |3.0|2018.1|
 |3.1|2018.2|
 |3.2|2018.3|
+|3.3|2019.1|
