diff --git a/README.md b/README.md
index 272aaba..d1e615a 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ Be sure to comply with the requirements while building connectors for better com
 - Use `getEthAddr()` to denote Ethereum (non-ERC20).
 - Use `address(this)` instead of `msg.sender` for fetching balance on-chain, etc.
 - Only `approve()` limited amount while giving ERC20 allowance, which strictly needs to be 0 by the end of the spell.
+- Use `getId()` for getting value that saved from previous spell.
+- Use `setId()` for setting value to save for the future spell.
 
 <!-- - If required, Add two additional parameter, `getId` & `setId` in external public functions.
 - Use `getUint()` or `setUint()` functions to fetch or store values.
@@ -31,4 +33,4 @@ Be sure to comply with the requirements while building connectors for better com
 
 ## Support
 
-If you can't find something you're looking for or have any questions, ask them at our developers community on [Telegram](https://t.me/instadevelopers), [Discord](https://discord.gg/83vvrnY) or simply send an [Email](mailto:info@instadapp.io).
\ No newline at end of file
+If you can't find something you're looking for or have any questions, ask them at our developers community on [Telegram](https://t.me/instadevelopers), [Discord](https://discord.gg/83vvrnY) or simply send an [Email](mailto:info@instadapp.io).