diff --git a/.gitignore b/.gitignore
index 2515ebf..7d26706 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 js/lib/*
 assets/images/*
+!assets/images/*.md
 
 report/*
 !report/*.tex
diff --git a/assets/images/SOURCES.md b/assets/images/SOURCES.md
new file mode 100644
index 0000000..e2e06ca
--- /dev/null
+++ b/assets/images/SOURCES.md
@@ -0,0 +1,3 @@
+| Asset      | URL                                                         |
+| ---------- | ----------------------------------------------------------- |
+| player.jpg | [ratio](https://avatarfiles.alphacoders.com/166/166581.jpg) |