update

README.md

@@ -1,2 +1,16 @@
 # anaphora
-define-anaphora macro for threading and overloading in Scheme
+define-anaphora macro for threading and overloading in Scheme.
+
+
+Implementation is provided for 2 systems based on the ALEXPANDER (Bigloo and Bones)
+and for systems implementing R6RS (using syntax-rules expander implementing required
+extensions). 3 R6RS systems were tested: Vicare, Racket and Larceny (although only 
+Vicare seems to work well).
+
+Both threading and overloading is implemented.
+
+Some minor differences in the standard library support for bytevectors in Bones
+and R6RS imply a slightly different interface. Minor point, can be corrected.
+
+No attempt to provide define-reader-ctor was made for other systems than Bigloo.
+With Bigloo, one can use {form} instead of #'form (see the simplex.scm and tfft.scm).