diff --git a/img/back.png b/img/back.png
new file mode 100644
index 0000000..837a438
Binary files /dev/null and b/img/back.png differ
diff --git a/img/double.png b/img/double.png
new file mode 100644
index 0000000..5bcbed2
Binary files /dev/null and b/img/double.png differ
diff --git a/img/download.png b/img/download.png
new file mode 100644
index 0000000..e218716
Binary files /dev/null and b/img/download.png differ
diff --git a/img/height.png b/img/height.png
new file mode 100644
index 0000000..2ada78d
Binary files /dev/null and b/img/height.png differ
diff --git a/img/single.png b/img/single.png
new file mode 100644
index 0000000..47dfd2a
Binary files /dev/null and b/img/single.png differ
diff --git a/img/width.png b/img/width.png
new file mode 100644
index 0000000..d07a9a1
Binary files /dev/null and b/img/width.png differ
diff --git a/reader.html b/reader.html
index b243e15..6f09ebe 100644
--- a/reader.html
+++ b/reader.html
@@ -21,13 +21,13 @@
