Include reference to ASAP

Author: chbrandt

README.md

@@ -5,3 +5,7 @@ NASA Ames Stereo Pipeline (ASP) Docker container.
 ASP documentation/resources:
 - https://ti.arc.nasa.gov/tech/asr/groups/intelligent-robotics/ngt/stereo/
 - https://byss.arc.nasa.gov/stereopipeline/daily_build/asp_book.pdf
+
+ASAP:
+- https://asap-stereo.readthedocs.io/en/main/intro.html
+