fix some spaces

Author: drowe67

README_freedv.md

@@ -191,7 +191,7 @@ $ ./src/freedv_tx 700D ../raw/ve9qrp.raw - --clip 0 --testframes | ./src/ch - -
 ```
 MultiPath Poor (MPP):
 ```
-$ ./src/freedv_tx 700D ../raw/ve9qrp.raw - --clip 0 --testframes | ./src/ch - - --No -24 --mpp --fading_dir unittest| ./src/freedv_rx 700D - /dev/null --testframes
+$ ./src/freedv_tx 700D ../raw/ve9qrp.raw - --clip 0 --testframes | ./src/ch - - --No -24 --mpp --fading_dir unittest | ./src/freedv_rx 700D - /dev/null --testframes
 ```
 
 Adjust `--clip [0|1]` and `No` argument of `ch` to obtain a PER of just less than 0.1, and note the SNR and PAPR reported by `ch`.  The use of the `ve9qrp` samples makes the test run for a few minutes, in order to get reasonable multipath channel results.

README_fsk.md

@@ -77,7 +77,7 @@ The Octave version of the modem was developed by David Rowe.  Brady O'Brien port
    $ cd ~/codec2/build_linux/src
    $ ./ldpc_enc /dev/zero - --code H_256_512_4 --testframes 200 |
      ./framer - - 512 5186 | ./fsk_mod 4 8000 100 1000 100 - - |
-     ./ch - - --No -24  |
+     ./ch - - --No -24 |
      ./fsk_demod -s 4 8000 100 - - |
      ./deframer - - 512 5186  |
      ./ldpc_dec - /dev/null --code H_256_512_4 --testframes