2016-02-14: add a readme

add a readme

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+Guile Freenet
+=============
+
+Tools to interact with Freenet from Guile Scheme
+
+Usage
+-----
+
+### fcp.scm 
+
+fcp.scm shows an example of interfacing with Freenet using [FCP][]. fcp.rkt is a version of the same written for racket.
+
+[FCP]: https://wiki.freenetproject.org/FCPv2 "Freenet Client Protocol"
+
+### crawl the social graph
+
+You can get a snapshot of the web of trust graph using
+
+- crawl-wot.scm
+- parse-crawled.scm
+- deduplicate-csv.scm
+- anonymize-csv.scm
+
+Simply execute them in order to get the file trust-anonymized.csv
+
+License: LGPL
+-------------
+
+All these programs are provided under the LGPL: You can copy, share, change and sell them, as long as you attribute the authors and enable others to do the same with your creation. See LICENSE for details.