Fix broken link. (#514)

* Fix broken links in docs.

* Revert vaapi docs changes

* fix broken link

* revert NTT software innovation link removal

Author: nszczygl9

docs/source/index.md

@@ -80,7 +80,7 @@ FasterRCNN, and other models.
 **DL Streamer** provides over two dozen samples, demos and
 reference apps for the most common media analytics use cases. They are
 included in
-[Deep Learning Streamer Pipeline Framework](https://github.com/open-edge-platform/edge-ai-libraries/tree/main/libraries/dl-streamer),
+[Deep Learning Streamer Pipeline Framework](https://github.com/open-edge-platform/dlstreamer/tree/master),
 [Deep Learning Streamer Pipeline Server](https://github.com/open-edge-platform/edge-ai-libraries/tree/main/microservices/dlstreamer-pipeline-server),
 [Open Visual Cloud](https://github.com/OpenVisualCloud), and
 [Intel® Edge Software Hub](https://www.intel.com/content/www/us/en/edge-computing/edge-software-hub.html)