Add 'Create Foundry' how-to

docs/build/isc/v1.0.0-rc.6/docs/how-tos/create-foundry.md

@@ -0,0 +1,83 @@
+---
+description: How to create a L1 foundry
+image: /img/logo/WASP_logo_dark.png
+tags:
+  - foundry
+  - EVM
+  - how-to
+---
+# Create a Foundry
+## About Foundries
+
+The Stardust update allows you to create your own native tokens. Native tokens are minted by a [Foundry](/tips/tips/TIP-0018/#foundry-output). 
+The Foundry allows you to specify your native token's maximum supply **once** and change the circulating supply. 
+This guide will show you how to create an L1 foundry using a L2 smart contract.
+
+## Example Code
+
+:::info Ownership
+
+You might want to look into making the function ownable with, for example,
+[OpenZeppelin](https://docs.openzeppelin.com/contracts/5.x/access-control#ownership-and-ownable)
+so only owners of the contract can call certain functionalities of your contract.
+
+:::
+
+1. Check if the amount paid to the contract is the same as the required [storage deposit](/learn/protocols/stardust/core-concepts/storage-deposit) 
+   and set the allowance.
+
+```solidity
+require(msg.value == _storageDeposit*(10**12), "Please send exact funds to pay for storage deposit");
+ISCAssets memory allowance;
+allowance.baseTokens = _storageDeposit;
+```
+
+:::info  Payable
+
+Instead of making the function payable, you could let the contract pay for the storage deposit. 
+If so, you will need to change the `require` statement to check if the contract's balance has enough funds.
+
+:::
+
+2. Define the `NativeTokenScheme`:
+
+```solidity
+NativeTokenScheme memory nativeTokenScheme = NativeTokenScheme({
+    mintedTokens: _mintedTokens,
+    meltedTokens: _meltedTokens,
+    maximumSupply: _maximumSupply
+});
+```
+
+3. Create the foundry by calling the `ISC.accounts.foundryCreateNew(nativeTokenScheme, allowance)` function:
+
+```solidity
+uint32 foundrySN = ISC.accounts.foundryCreateNew(nativeTokenScheme, allowance);
+```
+
+### Full Example Code 
+
+```solidity
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import "@iota/iscmagic/ISC.sol";
+
+contract CreateFoundry {
+    event CreatedFoundry(uint32 foundrySN);
+
+    function createFoundry(uint _mintedTokens, uint _meltedTokens, uint _maximumSupply, uint64 _storageDeposit) public payable {
+        require(msg.value == _storageDeposit*(10**12), "Please send exact funds to pay for storage deposit");
+        ISCAssets memory allowance;
+        allowance.baseTokens = _storageDeposit;
+        NativeTokenScheme memory nativeTokenScheme = NativeTokenScheme({
+            mintedTokens: _mintedTokens,
+            meltedTokens: _meltedTokens,
+            maximumSupply: _maximumSupply
+        });
+        uint32 foundrySN = ISC.accounts.foundryCreateNew(nativeTokenScheme, allowance);
+        emit CreatedFoundry(foundrySN);
+    }
+}
+```

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

@@ -161,6 +161,11 @@ module.exports = {
               label: 'Send Tokens to L1',
               id: 'how-tos/send-tokens-to-l1',
             },
+            {
+              type: 'doc',
+              label: 'Create Foundry',
+              id: 'how-tos/create-foundry',
+            },
           ],
         },
       ],