diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8560587..3d18462 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -52,7 +52,7 @@ A healthy project needs the perspective of many people.
 * Documentation - Suggest a clarification, simplification, correction, or other improvement.
 We need the perspective of people new to the project to see these things.
 Sometimes just changing a word or two makes a big difference.
-* [Current user contributions](todo geekhack) highlights contributions that are needed for the keybrd project's current stage of development.
+* [Current user contributions](https://geekhack.org/index.php?topic=83599.0) highlights contributions that are needed for the keybrd project's current stage of development.
 
 Text file documentation style guide:
 * Use Markdown with a .md suffix.
diff --git a/README.md b/README.md
index a33ba02..3917e5e 100644
--- a/README.md
+++ b/README.md
@@ -55,4 +55,4 @@ Support
 keybrd tutorial_1 shows how to build a breadboard keyboard.
 The remaining [keybrd tutorials](tutorials) show how to create custom keybrd firmware.
 
-Please ask questions in [keybrd firmware library](geekhack todo) thread if something is not clear.
+Please ask questions in [keybrd firmware library](https://geekhack.org/index.php?topic=83599.0) thread if something is not clear.
diff --git a/tutorials/breadboard_keyboard_supplies.ods b/tutorials/breadboard_keyboard_supplies.ods
index 2f37807..6acdd35 100644
Binary files a/tutorials/breadboard_keyboard_supplies.ods and b/tutorials/breadboard_keyboard_supplies.ods differ