add compatibility note about [sqrt~]/[rsqrt~]
improve description in [soundfiler] on how -resize and -maxsize act
Update 2.11.1.png
add pic for pd~ in MAX
rename 2.4.1
document new cosinw tablw and compatibility flag to [osc~], [cos~] & [vcf~]
fix pictures in section 2.4.1
change external extension table