Refactor and add Balancer V2 stub

docs/logic/vm-integration/README.md

@@ -4,3 +4,22 @@ This page describes the interface required to implement protocol logic component
 
 To create a VM implementation, it is required two provide a manifest file as well as a implementation of the corresponding adapter interface.
 
+## Step by step
+
+### Prerequisites
+
+1. Start by making a local copy of the Propeller Protocol Lib repository:
+```bash
+git clone https://github.com/propeller-heads/propeller-protocol-lib
+```
+
+2. Install `Foundry`, the smart contract development toolchain we use. We recommend installation using [foundryup](https://book.getfoundry.sh/getting-started/installation#using-foundryup)
+
+3. Install forge dependencies:
+```bash
+cd evm
+forge install
+```
+
+4. Your integration should be in a separate directory in the `evm/src` folder. You can clone one of the example directories `evm/src/uniswap-v2` or `evm/src/balancer` and rename it to your integration name.
+```

docs/logic/vm-integration/ethereum-solidity.md

@@ -46,7 +46,7 @@ instances:
     arguments:
       - "0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f"
 
-# Specify some automatic test cases in case getPools and
+# Specify some automatic test cases in case getPoolIds and
 # getTokens are not implemented.
 tests:
   instances:
@@ -117,7 +117,7 @@ Retrieves the capabilities of the selected pair.
 ```solidity
 function getCapabilities(bytes32 pairId, IERC20 sellToken, IERC20 buyToken)
     external
-    returns (Capabilities[] memory);
+    returns (Capability[] memory);
 ```
 
 #### getTokens (optional)