Update tips.md

docs/tips.md

@@ -57,7 +57,7 @@ You can use them to design tokenomics with very minimal gas overhead.
 | O(1) ownerOf     | Yes            | No ownerOf             |
 | O(1) balanceOf   | For all tokens | Within fungible tokens |
 | O(1)\* bulk mint | For all tokens | Within fungible tokens |
-| # mint `SSTORE`s | 2              | 1                      |
+| # mint `SSTORE`s | 3              | 1                      |
 
 \* Approximately O(1) for ERC721A. See [Design](design.md).
 
@@ -76,4 +76,4 @@ these excellent implementations can be better for lowering overall transaction f
 - [OpenZeppelin](https://github.com/OpenZeppelin/openzeppelin-contracts) 
 - [Solmate](https://github.com/Rari-Capital/solmate)
 
-Use the right tool for the job.
+Use the right tool for the job.