Add images of the Apollo-Soyuz Test Project launches

Source:

http://www.hq.nasa.gov/office/pao/History/alsj/astp/astp-S75-33375.jpg
http://www.hq.nasa.gov/office/pao/History/alsj/astp/astp-KSC-75C-703.jpg
Make a side-by-side launch image for ASTP

The Soyuz image in the book is terrible, this fits the caption better.
Crop the image of the Skylab launch
Add a better image of the AS-501 launch

Source: http://www.hq.nasa.gov/office/pao/History/alsj/a410/ap4-KSC-67PC-435HR.jpg

This has better colors than the MSFC version, and is cropped like the book.