Docs - Updates (#213)

* Docs - Updates

* Quick-start - Readme

* Docs - updates

* Docs - Change root

* Docs - Fix root

* cleanup

[ROCm/rocdecode commit: 53f3d68c6f]

projects/rocdecode/docs/doxygen/Doxyfile

@@ -944,7 +944,7 @@ WARN_LOGFILE           =
 # Note: If this tag is empty the current directory is searched.
 
 INPUT                  = ../../README.md \
-                        ../../api/rocDecode.h \
+                        ../../api/rocdecode.h \
                         ../../api/rocparser.h \
                         ../../utils/rocvideodecode/roc_video_dec.h \
                         ../../utils/video_demuxer.h