I checked into cin-manual-latex GIT, a few more updates to the Installation.tex file and quite a few corrections in the Quickstart.tex file. Hoping that Andrea can look at the section and provide a fix for the space in A.1.4 between item 5 and 6 caused by location of a png file and also see if the other png are in good locations.
In addition, the actual CinelerraGG_Quickstart.pdf on the website needs corrections - it is based on CinelerraGG_Quickstart.odt which I have on my computer and can email to Andrea (hopefully, if he "volunteers" to correct it). And I do not know why another helpful pdf file is not on the website, but I think I must have missed putting it there and it needs minor corrections too -- quickstart_batch_render.pdf / quickstart_batch_render.odt (Batch Render Wizard Quick Start Guide).