Update oracle daemon config docs

docs/contracts/oracle-daemon-config.md

@@ -9,3 +9,102 @@ The full list of params are provided in the Lido V2 mainnet parameters [guide](/
 :::note
 In contrast to [`OracleReportSanityChecker`](/contracts/oracle-report-sanity-checker), the stored values aren't enforced by the protocol on-chain code.
 :::
+
+## View methods
+
+### get(string calldata _key)
+
+Retrieves the value corresponding to the provided key.
+
+```solidity
+function get(string calldata _key) external view returns (bytes memory)
+```
+
+:::note
+Reverts if value is missing.
+:::
+
+### getList(string[] calldata _keys)
+
+Retrieves a list of values corresponding to the provided keys.
+
+```solidity
+function getList(string[] calldata _keys) external view returns (bytes[] memory)
+```
+
+:::note
+Reverts if any value for a specific key is missing.
+:::
+
+## Methods
+
+### set(string calldata _key, bytes calldata _value)
+
+Sets the value for the provided key. Can only be called by users with `CONFIG_MANAGER_ROLE`.
+
+```solidity
+function set(string calldata _key, bytes calldata _value) external
+```
+
+:::note
+Reverts if any of the following is true:
+- value with provided key already exists
+- value is empty
+- called by someone who doesn't have `CONFIG_MANAGER_ROLE` role
+:::
+
+### update(string calldata _key, bytes calldata _value)
+
+Updates the value for the provided key. Can only be called by users with `CONFIG_MANAGER_ROLE`.
+
+```solidity
+function update(string calldata _key, bytes calldata _value) external
+```
+
+:::note
+Reverts if any of the following is true:
+- value with provided key doesn't exist
+- value is the same with the one already set
+- value is empty
+- called by someone who doesn't have `CONFIG_MANAGER_ROLE` role
+:::
+
+### unset(string calldata _key)
+
+Removes the value of the provided key. Can only be called by users with `CONFIG_MANAGER_ROLE`.
+
+```solidity
+function unset(string calldata _key) external
+```
+
+:::note
+Reverts if any of the following is true:
+- value with provided key doesn't exist
+- called by someone who doesn't have `CONFIG_MANAGER_ROLE` role
+:::
+
+## Events
+
+### ConfigValueSet
+
+Emitted when a new key-value pair is set.
+
+```solidity
+event ConfigValueSet(string indexed key, bytes value)
+```
+
+### ConfigValueUpdated
+
+Emitted when a key-value pair is updated.
+
+```solidity
+event ConfigValueUpdated(string indexed key, bytes value)
+```
+
+### ConfigValueUnset
+
+Emitted when a key-value pair is unset.
+
+```solidity
+event ConfigValueUnset(string indexed key)
+```