doc: Add missing protocols to list of supported protocols.

doc/general.texi

@@ -804,19 +804,30 @@ performance on systems without hardware floating point support).
 
 @multitable @columnfractions .4 .1
 @item Name         @tab Support
-@item Apple HTTP Live Streaming @tab X
 @item file         @tab X
 @item Gopher       @tab X
+@item HLS          @tab X
 @item HTTP         @tab X
-@item MMS          @tab X
+@item HTTPS        @tab X
+@item MMSH         @tab X
+@item MMST         @tab X
 @item pipe         @tab X
+@item RTMP         @tab X
+@item RTMPE        @tab E
+@item RTMPS        @tab E
+@item RTMPT        @tab E
+@item RTMPTE       @tab E
 @item RTP          @tab X
+@item SCTP         @tab X
 @item TCP          @tab X
+@item TLS          @tab X
 @item UDP          @tab X
 @end multitable
 
 @code{X} means that the protocol is supported.
 
+@code{E} means that support is provided through an external library.
+
 
 @section Input/Output Devices