Add more context to the readme section

diff --git a/__lagdetect.awk b/__lagdetect.awk
index 0c1889b4759a6a92bb2180ec13b160e7d5c6de4b..31bd12a6906094655034ed44d4725407aecfee36 100644 (file)
--- a/__lagdetect.awk
+++ b/__lagdetect.awk
@@ -17,6 +17,11 @@
 # This is a POSIX AWK script that will adapt cake SQM bandwidth depending on
 # latency reported by fping(8). It is useless on its own, and should be started
 # by the accompanying shellscript wrapper found in the same directory.
+#
+# This is work in progresa and has severe limitations. Latency upswings that
+# are NOT caused by bufferbloat cannot be told apart from those that are caused
+# by it, but hopefully will be in a future version. Presently, only downstream
+# bandwidth is being shaped.
 
 BEGIN {
   CONVFMT="%.3f"