doc/filters: adds recently added -vf colorspace options

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

doc/filters.texi

@@ -5335,6 +5335,9 @@ SMPTE-170M or BT.601-6 525
 @item smpte240m
 SMPTE-240M
 
+@item ycgco
+YCgCo
+
 @item bt2020ncl
 BT.2020 with non-constant luminance
 
@@ -5349,6 +5352,12 @@ The accepted values are:
 @item bt709
 BT.709
 
+@item bt470m
+BT.470M
+
+@item bt470bg
+BT.470BG
+
 @item gamma22
 Constant gamma of 2.2
 
@@ -5361,6 +5370,18 @@ SMPTE-170M, BT.601-6 625 or BT.601-6 525
 @item smpte240m
 SMPTE-240M
 
+@item srgb
+SRGB
+
+@item iec61966-2-1
+iec61966-2-1
+
+@item iec61966-2-4
+iec61966-2-4
+
+@item xvycc
+xvycc
+
 @item bt2020-10
 BT.2020 for 10-bits content
 
@@ -5390,6 +5411,15 @@ SMPTE-170M or BT.601-6 525
 @item smpte240m
 SMPTE-240M
 
+@item film
+film
+
+@item smpte431
+SMPTE-431
+
+@item smpte432
+SMPTE-432
+
 @item bt2020
 BT.2020
 
@@ -5401,9 +5431,15 @@ Specify output color range.
 
 The accepted values are:
 @table @samp
+@item tv
+TV (restricted) range
+
 @item mpeg
 MPEG (restricted) range
 
+@item pc
+PC (full) range
+
 @item jpeg
 JPEG (full) range