docs: update comments for the refactor

Author: QGarchery

src/ChainlinkOracle.sol

@@ -49,12 +49,10 @@ contract ChainlinkOracle is IOracle {
         uint256 baseTokenDecimals,
         uint256 quoteTokenDecimals
     ) {
+        // The vault parameter is used for ERC4626 tokens, to price its shares.
+        // It is used to price a full unit of the vault shares, so it requires dividing by that number, hence the
+        // `VAULT_DECIMALS` subtraction in the following `SCALE_FACTOR` definition.
         VAULT = vault;
-        // TODO: adapt this
-        // This scale factor is defined similarly to the scale factor of the ChainlinkOracle, except:
-        // - the oracle only has one base feed and one quote feed
-        // - it is used to price a full unit of the vault shares, so it requires dividing by that number, hence the
-        // `VAULT_DECIMALS` subtraction
         VAULT_DECIMALS = VAULT.getDecimals();
         BASE_FEED_1 = baseFeed1;
         BASE_FEED_2 = baseFeed2;

src/libraries/VaultLib.sol

@@ -6,7 +6,7 @@ import {ERC4626Interface} from "../interfaces/ERC4626Interface.sol";
 /// @title ChainlinkDataFeedLib
 /// @author Morpho Labs
 /// @custom:contact [email protected]
-/// @notice Library exposing functions to interact with a Chainlink-compliant feed.
+/// @notice Library exposing functions to price shares of an ERC4626 vault.
 library VaultLib {
     /// @dev Converts `shares` into the corresponding assets on the `vault`.
     /// @dev When `vault` is the address zero, returns 1.