2014-02-12: add some scheme highlights.

add some scheme highlights.

diff --git a/README b/README
--- a/README
+++ b/README
@@ -14,6 +14,8 @@ Wisp: Whitespace to Lisp
 
 Wisp turns indentation based syntax into Lisp. The conversion is homoiconic[^h], generic[^g], and backwards-compatible[^b]. It is inspired by [project readable][], but tries to keep itself simple (and stupid: just a preprocessor). More information on the [wisp-website][] and code in the [wisp-repository][].
 
+For a short presentation, see [Why Wisp?](why-wisp.html)
+
 [wisp-website]: http://draketo.de/light/english/wisp-lisp-indentation-preprocessor "wisp: Whitespace to Lisp: An indentation to parentheses preprocessor to get more readable Lisp"
 [wisp-repository]: http://draketo.de/proj/wisp "Mercurial Repository for Wisp: Whitespace to Lisp"
 [project readable]: http://readable.sourceforge.net/ "Readable Lisp S-expressions Project"
@@ -49,6 +51,8 @@ Wisp treats braces "{}" the same as pare
                 . v
                 rek {i + 1} v {u + v}
 
+Note that this is full-fledged scheme, with all its capabilities - like hygienic macros (programmable syntax!) and full tail recursion.
+
 If you want to use a curly-infix expression starting a line, you have to prefix it with a dot:
 
     . {1 + 1}