More README.md files updated

Some of the files modified include some of the files modified yesterday;
others were not modified yesterday. I backtracked as I noticed some
sections are missing in earlier README.md files. However more have to be
checked in earlier years. I'm committing now as I have to do other
things and am likely done for the day.

1986/applin/README.md

@@ -10,6 +10,10 @@ USA
 
         make all
 
+## To run:
+
+	./applin
+
 ### Try:
 
 	sh applin.c