Update openapi files in the docs

- add yaml versions of the spec to the offered apis section
- rename swagger files to openapi

Issue-ID: SDC-4308

Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>
Change-Id: Ie34e562ccf294c8d9f19d3cad30a5a626c3db0ba
diff --git a/openecomp-be/tools/swagger-ui/index.html b/openecomp-be/tools/swagger-ui/index.html
index 2aefcd2..5821ad2 100644
--- a/openecomp-be/tools/swagger-ui/index.html
+++ b/openecomp-be/tools/swagger-ui/index.html
@@ -41,7 +41,7 @@
       if (window.location.pathname.indexOf('/api-docs') > 0) {
         url += window.location.pathname.substring(0, window.location.pathname.indexOf('/api-docs'))
       }
-      url += "/api-docs/swagger-sdce-1.json";
+      url += "/api-docs/openapi-sdce-1.json";
 
       // Begin Swagger UI call region
       const ui = SwaggerUIBundle({