Merge branch 'master' of gitlab.creanet.sk:kero/db-js

README.MD

+###### create commands
+
+```
+git subtree add --prefix shared/db-js git@gitlab.creanet.sk:kero/db-js.git master --squash
+```
+
+######update command
+
+```
+git subtree pull --prefix shared/db-js git@gitlab.creanet.sk:kero/db-js.git master --squash
+```
+
+###### push command
+
+```
+git subtree push --prefix shared/db-js git@gitlab.creanet.sk:kero/db-js.git master
+```