Update README.md

Author: chbrandt

README.md

@@ -1,3 +1,7 @@
 # Docker Asp
 
-ASP container
+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