[vlc-devel] Minor wiki updates

[Juha Jeronen]

Hi all,

Added description of J420 and J422 formats:
http://wiki.videolan.org/YUV

Created the corresponding redirects:
http://wiki.videolan.org/J420
http://wiki.videolan.org/J422

Linked them from here (also added some missing links to I420, I422, YV12
and mentioned the YUV page):
http://wiki.videolan.org/Hacker_Guide/Video_Filters/Deinterlace

Edited "For advanced users", second paragraph:
http://wiki.videolan.org/Deinterlacing#VLC_settings


 -J