Custom erc20

docs/build/isc/v1.0.0-rc.6/docs/how-tos/token/erc20-native-token.md

@@ -0,0 +1,45 @@
+---
+description: How to use the custom functionality of ERC20NativeToken
+image: /img/logo/WASP_logo_dark.png
+tags:
+  - native token
+  - erc20
+  - EVM
+  - how-to
+---
+
+# Custom ERC20 Functions
+
+Once you [registered your native token as ERC20](./erc20-native-token.md) you can use it like any other ERC20 token, with functions like
+`transfer`, `balanceOf`, etc. But, as the ERC20 token maps the native token on L2, there are some additional ISC features 
+you can take advantage of.
+
+## Example Code
+
+### Get Your `ERC20NativeTokens` Instance
+
+You can use the `erc20NativeTokensAddress` function and the Foundry serial number to get the contract address:
+
+```solidity
+ERC20NativeTokens token = ERC20NativeTokens(
+    ISC.sandbox.erc20NativeTokensAddress(_foundrySN)
+);
+```
+
+* `nativeTokenID` will give you the native token ID of the ERC20 token:
+
+```solidity
+NativeTokenID memory id =token.nativeTokenID();
+```
+
+### Full Example Code
+
+```solidity
+function nativeTokenID(uint32 _foundrySN) public view returns (bytes memory) {
+    ERC20NativeTokens token = ERC20NativeTokens(
+        ISC.sandbox.erc20NativeTokensAddress(_foundrySN)
+    );
+    NativeTokenID memory id =token.nativeTokenID();
+    return id.data;
+}
+```

docs/build/isc/v1.0.0-rc.6/docs/how-tos/token/introduction.md

@@ -0,0 +1,18 @@
+---
+description: How to handle native tokens on L2 and use them as ERC20
+image: /img/logo/WASP_logo_dark.png
+tags:
+  - native token
+  - EVM
+  - how-to
+---
+import DocCardList from '@theme/DocCardList';
+
+# Native Token and ERC20NativeToken
+
+The IOTA L1 has functionality to create L1 tokens, also called native tokens. To use these native tokens on L2, you have
+a ERC20 contract called `ERC20NativeToken`. The following guides will show you how to [create a foundry](create-foundry.md)
+that can [mint your own L1 token from L2](mint-token.md), and [register](register-token.md) it as `ERC20NativeToken`, 
+so it can be used like any other ERC20 token with some additional features.
+
+<DocCardList />

docs/build/isc/v1.0.0-rc.6/sidebars.js

@@ -184,8 +184,13 @@ module.exports = {
             },
             {
               type: 'category',
-              label: 'Tokens',
+              label: 'Token',
               items: [
+                {
+                  label: 'Introduction',
+                  type: 'doc',
+                  id: 'how-tos/token/introduction',
+                },
                 {
                   type: 'doc',
                   label: 'Create a Foundry',