Re: [Cin] Typoes in documentation and possibly errors in FFmpeg config dir

@Miroslav Rovis Thanks for pointing out the error; I've changed the manual, but if anyone notices other sections with the wrong "acc", please let me know. The git introduction to the "Overview on Formats and Codecs" section can be found here: https://git.cinelerra-gg.org/git/?p=goodguy/cin-manual-latex.git;a=commit;h=... Subsequently, there were other corrections. @Phyllis You also need to change the preset name "acc256k.pro" to "aac256k.pro" in the source code. I attach the changes in the manual.