Cleaned up top-level README, and fixed or deleted lower level ones as
[debian/gnuradio] / gr-atsc /
drwxr-xr-x   ..
-rw-r--r-- 1441 ChangeLog
-rw-r--r-- 926 Makefile.am
-rw-r--r-- 975 README
-rw-r--r-- 3441 README.signal_flow
drwxr-xr-x - doc
drwxr-xr-x - src