diff --git a/.gitignore b/.gitignore
index 33cf6e6..18c5f16 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,3 @@
-*.png
+imgs/*.png
 .DS_Store
 convert.sh
-diagram.md
-imgs/papers.jpg
-imgs/legend.jpg
diff --git a/imgs/cot.jpg b/imgs/cot.jpg
new file mode 100644
index 0000000..3dc7d12
Binary files /dev/null and b/imgs/cot.jpg differ
diff --git a/imgs/cot.png b/imgs/cot.png
deleted file mode 100644
index 49adb4e..0000000
Binary files a/imgs/cot.png and /dev/null differ