Added json-in-db submodule

Author: gvenzl

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "db-sample-schemas"]
 path = db-sample-schemas
 url = https://github.com/oracle/db-sample-schemas
+[submodule "JSON/json-in-db"]
+path = JSON/json-in-db
+url = https://github.com/oracle/json-in-db

JSON/README.md

@@ -0,0 +1,5 @@
+# JSON based examples
+This folder stores JSON (JavaScript Object Notation) document based examples for Oracle Database.
+
+## json-in-db
+Legacy repository of JSON based examples.