Update TODO.md

Author: shannona

TODO.md

@@ -4,9 +4,9 @@ The following TODO items are intended for a 3.0 version of Learning Bitcoin from
 
 ## Immediate TODO (for 4/30): Hardware Wallets & Book & Locktime
 
-1. Edit §8.4: Animated QRs
+1. <strike>Edit §8.4: Animated QRs</strike>
 2. Revise §8.5: Using Hardware Wallets
-3. Get README & Ch. 8 Summary up to date with new section ordering
+3. <strike>Get README & Ch. 8 Summary up to date with new section ordering</strike>
 4. Prepare Index for Mkdocs
 5. Prepare MkDocs for Chapters 1-8
 6. Update Chapter 9 on Locktime