push to docker hub too

schema/create-schema.sql

@@ -1,5 +1,5 @@
 create database cem_monitoring;
--- create extension timescaledb;
+create extension timescaledb;
 
 
 
@@ -22,7 +22,7 @@ create table variable_t (
 );
 
 create table measurement_t (
-    time timestamp without time zone not null,
+    time timestamptz not null,
     variable integer references variable_t (id),
     value float
 );