Improve bitmap index

content/docs/milestone_2/tick-bitmap-index.md

@@ -99,14 +99,14 @@ After finding word and bit positions, we need to make a mask. A mask is a number
 bit position of the tick. To find the mask, we simply calculate `2**bit_pos` (equivalent of `1 << bit_pos`):
 ```python
 mask = 2**bit_pos # or 1 << bit_pos
-print(bin(mask))
-#0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+print(format(mask, '#0258b')) ↓ here
+#0b0000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 ```
 
 Next, to flip a flag, we apply the mask to the tick's word via bitwise XOR:
 ```python
 word = (2**256) - 1 # set word to all ones
-print(bin(word ^ mask))  ↓ here
+print(format(word ^ mask, '#0258b')) ↓ here
 #0b1111111111111111111111111111111111111111111111111111111111111111111111101111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
 ```
 
@@ -115,8 +115,8 @@ You'll see that 184th bit (counting from the right starting at 0) has flipped to
 If a bit is zero, it'll set it to 1:
 ```python
 word = 0
-print(bin(word ^ mask))
-#0b10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
+print(format(word ^ mask, '#0258b')) ↓ here
+#0b0000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 ```
 
 ### Finding Next Tick