Fix documentation typos (#1019)

contracts/src/utils/Uint16Array.sol

@@ -9,7 +9,7 @@ pragma solidity 0.8.22;
  * expensive in terms of gas. The BeefyClient only needs 16 bits per counter. This library allows us to pack
  * 16 uint16 into a single uint256 and save 16x storage.
  *
- * Layout of 8 counters (2 uint256)
+ * Layout of 32 counters (2 uint256)
  * We store all counts in a single large uint256 array and convert from index from the logical uint16 array
  * to the physical uint256 array.
  *
@@ -27,7 +27,7 @@ pragma solidity 0.8.22;
  * In the above table counter YY is at logical index 12 in the uint16 array. It will convert to a physical
  * index of 0 in the physical uint256 array and then to bit-index of 192 to 207 of that uint256. In the
  * above table counter XX is at logical index 22. It will convert to a physical index of 1 in the array and
- * then to bit-index 128 to 143 of uint256[1].
+ * then to bit-index 96 to 111 of uint256[1].
  */
 library Uint16Array {
     /**
@@ -65,7 +65,7 @@ library Uint16Array {
         // Right-shift the index by 4. This truncates the first 4 bits (bit-index) leaving us with the index
         // into the array.
         uint256 element = index >> 4;
-        // Mask out the first 4 bytes of the logical index to give us the bit-index.
+        // Mask out the first 4 bits of the logical index to give us the bit-index.
         uint8 inside = uint8(index) & 0x0F;
         // find the element in the array, shift until its bit index and mask to only take the first 16 bits.
         return uint16((self.data[element] >> (16 * inside)) & 0xFFFF);