Added summary and report of FEVM audit report from Oak Security (#1317)

* Added summary and report of FEVM audit report from Oak Security

* Update audit_reports.md

fixed a couple of typoes

* prettier --write

---------

Co-authored-by: smagdali <stefan@whitelabel.org>
Co-authored-by: smagdali <stefan@fil.org>
Co-authored-by: Ian Davis <jungziege@gmail.com>

content/appendix/audit_reports.md

@@ -10,6 +10,17 @@ dashboardAudit: n/a
 
 Security is a critical component in ensuring Filecoin can fulfill its mission to be the storage network for humanity. In addition to robust secure development processes, trainings, theory audits, and investing in external security research, the Filecoin project has engaged reputable third party auditing specialists to ensure that the theory behind the protocol and its implementation delivers the intended value, enabling Filecoin to be a safe and secure network. This section covers a selection of audit reports that have been published on Filecoin's theory and implementation.
 
+## Filecoin Virtual Machine
+
+### `2023-03-09` Filecoin EVM (FEVM)
+
+- Report: [Filecoin EVM Audit](<https://github.com/oak-security/audit-reports/blob/master/Filecoin%20Foundation/2023-03-09%20Audit%20Report%20-%20Filecoin%20EVM%20(FEVM)%20v1.1.pdf>)
+- Audit conducted by **Oak Security**
+
+The audit covers the implementation of:
+
+- FEVM's [builtin actors](https://github.com/filecoin-project/builtin-actors/tree/1b11df4b399550753a4105f45f58bc07015af2a3/actors/evm) out of which only [actors/evm](https://github.com/filecoin-project/builtin-actors/tree/1b11df4b399550753a4105f45f58bc07015af2a3/actors/evm) and [actors/eam](https://github.com/filecoin-project/builtin-actors/tree/1b11df4b399550753a4105f45f58bc07015af2a3/actors/eam) were included in scope along with code base of [ref-fvm](https://github.com/filecoin-project/ref-fvm). The report included auditing EVM runtime action and implementation, correctness of EVM opcodes, including Ethereum Address Manager(EAM). The report also included issues and enhancements methods for gas model and F4 addresses. The audit team also reviewed the message execution flow and kernel setup, WASM integration and FVM logs. All the valid issues raised by the audit were resolved and acknowledged including a few informational issues. More details on these issues are available in the report.
+
 ## Lotus
 
 ### `2020-10-20` Lotus Mainnet Ready Security Audit