Update README.md

Author: aconconi

71_Poker/python/README.md

@@ -4,9 +4,11 @@ Conversion to [Python](https://www.python.org/about/)
 
 ---
 
+### Python porting notes
+
 #### Known BASIC bugs — fixed
 
-- **Tie tack unreachable (line 3970):** The condition
+- **Tie tack unreachable** (BASIC line 3970): The condition
   `IF O/3<>INT(O/3) THEN 4090` is logically inverted. It checks if the 
   tie tack has *not* been sold, and if so, incorrectly jumps to the 
   "Bust" message. This makes the tie tack sale permanently unreachable 
@@ -15,12 +17,12 @@ Conversion to [Python](https://www.python.org/about/)
 
 #### Known BASIC bugs/quirks — kept faithful
 
-- **$50 buy-back materialises from nowhere (lines 3570/3640):**
+- **$50 buy-back materialises from nowhere** (BASIC lines 3570/3640):
   When the player buys back a pawned item, `C=C+50` adds $50 to the
   dealer's stack without deducting from the player.  Kept as-is — it
   models the dealer/pawnbroker liquidating the physical item.
 
-- **Yes/No prompts accept anything (e.g. lines 3550, 3880):**
+- **Yes/No prompts accept anything** (e.g. BASIC lines 3550, 3880):
   `LEFT$(J$,1)="Y"` treats every non-"Y" input as "no" with no
   re-prompt.  The Python port normalises all yes/no prompts to a single
   `_read_yes_no` that retries on invalid input (matching the stricter