readme giving credit to original authors

examples/stadtx/fork.sh

@@ -1,16 +1,17 @@
 #!/bin/bash -ex
 
-baseurl='https://github.com/dgryski/go-stadtx/raw/3c3d9b328c24a9b5ecd370654cd6e9d60a85752d'
-
 dl() {
-    filename=$1
-    url="${baseurl}/${filename}"
+    url=$1
+    filename=$(basename $1)
     {
-        echo "// Downloaded from '${url}'. DO NOT EDIT."
+        echo "// Downloaded from ${url}"
         echo
         curl -L ${url}
     } > ${filename}
 }
 
-dl stadtx.go
-dl stadtx_test.go
+baseurl='https://github.com/dgryski/go-stadtx/raw/3c3d9b328c24a9b5ecd370654cd6e9d60a85752d'
+dl ${baseurl}/stadtx.go
+dl ${baseurl}/stadtx_test.go
+
+dl 'https://raw.githubusercontent.com/demerphq/BeagleHash/5f8620b953230e5b16171b745155fc3b0ef8f75e/LICENSE'