diff --git a/index.html b/index.html
index 0a38f8b..c2c1b79 100644
--- a/index.html
+++ b/index.html
@@ -23,6 +23,7 @@
Peristaltic Pump
Factor diagrams!
A (boring) visualisation of a sorting algorithm in JS
+ @tariffbot
diff --git a/prime-circles.svg b/prime-circles.svg
new file mode 100644
index 0000000..a9f87c3
--- /dev/null
+++ b/prime-circles.svg
@@ -0,0 +1,1665 @@
+