Fixed some more readme issues

README.md

@@ -4,7 +4,7 @@ To listen to it on Linux, run:
 
 `$ echo | ./bach.sed | aplay -r44100`
 
-or, to play it using [sox](http://sox.sourceforge.net/):
+Or, to play it using [sox](http://sox.sourceforge.net/):
 
 `$ echo | ./bach.sed | play -r 44100 -e unsigned -b 8 -c 1 -t raw -`
 
@@ -14,7 +14,7 @@ It will take a few seconds (16s on my laptop) for it to start producing sound.
 
 For OS X or BSD systems, you'll have to install `gsed` (FreeBSD) or `gnu-sed` (OS X) and edit bach.sed to start with:
 
-`#/usr/local/bin/gsed`
+`#/usr/local/bin/gsed -Ef`
 
 To install required packages, use:
 
@@ -24,7 +24,9 @@ $ pkg install sox; pkg install gsed       # (FreeBSD)
 $ brew install sox; brew install gnu-sed  # (OS X)
 ```
 
-And use the linux command line from above.
+And use this command line:
+
+`$ echo | ./bach.sed | play -r 44100 -e unsigned -b 8 -c 1 -t raw -`
 
 It should be possible to run on Windows using Cygwin but I haven't tried doing that.