diff --git a/README.md b/README.md
index 6c42983..71f4ea8 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,11 @@
 # docker-pinpoint
+
+Create docker machine
+```
+docker-machine create --driver virtualbox --virtualbox-disk-size "50000" --engine-storage-driver "overlay" --virtualbox-memory "4096" --virtualbox-cpu-count "8" docker-vm
+```
+
+Configure your shell
+```
+eval "$(docker-machine env docker-vm)"
+```
\ No newline at end of file
diff --git a/pinpoint-collector/start.sh b/pinpoint-collector/start.sh
index 9b3ea7d..d2eb86e 100644
--- a/pinpoint-collector/start.sh
+++ b/pinpoint-collector/start.sh
@@ -11,4 +11,4 @@ cp /assets/hbase.properties /usr/local/tomcat/webapps/ROOT/WEB-INF/classes/hbase
 sed 's/hbase.client.host=localhost/hbase.client.host='"${HBASE_HOST}"'/g' -i /usr/local/tomcat/webapps/ROOT/WEB-INF/classes/hbase.properties
 sed 's/hbase.client.port=2181/hbase.client.port='"${HBASE_PORT}"'/g' -i /usr/local/tomcat/webapps/ROOT/WEB-INF/classes/hbase.properties
 
-/usr/local/tomcat/bin/catalina.sh run
+exec "/usr/local/tomcat/bin/catalina.sh run"