2014-05-02: added the testrunner call to a footnote.

added the testrunner call to a footnote.

diff --git a/docs/srfi.org b/docs/srfi.org
--- a/docs/srfi.org
+++ b/docs/srfi.org
@@ -417,7 +417,7 @@ TODO: Include the code from http://drake
 
 The wisp test-suite consists of a large number of wisp-snippets and the corresponding scheme-code. A wisp-implementation may call itself compliant to the wisp test-suite if it successfully converts each wisp-snippet into the corresponging scheme-snippet. Blank lines at the end of the file and non-functional white-space in the produced scheme-file do not matter for this purpose.
 
-This test-suite is also available in the [[http://draketo.de/proj/wisp][wisp repository]] along with a script-runner (runtests.sh) which tests the reference wisp-implementation with GNU Guile against this testsuite.
+This test-suite is also available in the [[http://draketo.de/proj/wisp][wisp repository]] along with a script-runner (runtests.sh) which tests the reference wisp-implementation with GNU Guile against this testsuite.[fn:5]
 
 The test-suite included here only contains scheme-compatible code to allow for scheme-specific wisp-implementations which use existing parsing functions to simplify the code.
 
@@ -1157,4 +1157,6 @@ newline
 [fn:3] This special syntax for double parens cannot be replaced by clever whitespace parsing, because it is required for representing two consecutive forms which start with double parentheses. The only pure-whitespace alternative would be fixed-width indentation levels.
 
 [fn:4] I used a double let without action as example for the colon-syntax, even though that does nothing, because that makes it impossible to use later indentation to mark an intermediate indentation-level. Another reason why I would not use later indentation to define whether something earlier is a single or double indent is that this would call for subtle and really hard to find errors:
+
+[fn:5] To run the tests in the wisp testsuite with a separately built GNU Guile, you can use any given guile interpreter by adjusting the following command: =PATH=~/guile-2.0.11/meta:${PATH} ./runtests.sh=