feat: add MIT license file

.env.example

@@ -1,2 +1 @@
 ETH_RPC_URL=
-ETHERSCAN_API_KEY=

LICENSES/MIT.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Symbiotic
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -30,10 +30,9 @@ Create `.env` file using a template:
 
 ```
 ETH_RPC_URL=
-ETHERSCAN_API_KEY=
 ```
 
-\* ETHERSCAN_API_KEY is optional.
+To get the `ETH_RPC_URL`, you can use [Alchemy](https://www.alchemy.com/), [Infura](https://infura.io/), or any other Ethereum node provider.
 
 ### Build
 

foundry.toml

@@ -24,8 +24,4 @@ tab_width = 4
 runs = 2048
 max_test_rejects = 262144
 
-[etherscan]
-mainnet = { key = "${ETHERSCAN_API_KEY}" }
-holesky = { key = "${ETHERSCAN_API_KEY}" }
-
 # See more config options https://github.com/foundry-rs/foundry/blob/master/crates/config/README.md#all-options