2013-04-11: merge

merge

diff --git a/Readme.txt b/Readme.txt
--- a/Readme.txt
+++ b/Readme.txt
@@ -23,3 +23,16 @@ becomes
 
 
 Usage: ./wisp.py infile.wisp > outfile.lisp
+
+More powerful usage (in case you use unix):
+
+    cat infile.wisp | ./wisp.py - | guile -s /dev/stdin
+
+That converts the infile to scheme and executes it via guile.
+
+Or with bash, extend this to a multiline input:
+
+    while IFS= read in ; do echo "$in" ; done | ./wisp.py - | guile -s /dev/stdin
+
+(finish the input with CTRL-D)
+(Note: IFS= ensures that initial blanks are kept)