diff --git a/documentation_file.txt b/documentation_file.txt
index e69de29..c5cceed 100644
--- a/documentation_file.txt
+++ b/documentation_file.txt
@@ -0,0 +1,11 @@
+
+- support HTTP/1.1 (no HTTP/1.0 needed)
+- urls without / at the end (and %xx codes)
+- etags using sha1sum
+- if no index.html: return 404
+- only GET support
+- persistence and timeouts and connection: close from both sides.
+
+implementation:
+
+implemented using sockets and select