Merge pull request #344 from QuantumFusion-network/fix_link_and_typo

Fix typo & link

Author: dedok

docs/TestNet_infra/test_net.md

@@ -21,8 +21,8 @@ Docs index & references of QF TestNet.
 - Secret & password manager with [access control](https://github.com/QuantumFusion-network/infra/blob/main/docs/key_management_basic.md) is [Bitwarden](https://bitwarden.com).
 - HLD (High level design) of TestNet: `docs/TestNet/TestNet.drawio`
 
-### Additinition information:
-- [TCO of TestNet (allowed only for team members)](https://github.com/QuantumFusion-network/infra/tree/main/docs/testnet_tco_Mar_2025.md)
+### Additional information:
+- [TCO of TestNet (only for team members)](https://github.com/QuantumFusion-network/infra/blob/main/docs/testnet_tco_mar_2025.md)
 - [Provisioning & CI/CD](https://github.com/QuantumFusion-network/infra/blob/main/docs/provisioning_and_telemetry.md)
 - [How we work with versions & upstream updates](https://github.com/QuantumFusion-network/spec/blob/issue/infra_updates_1/docs/proc/how_we_work_in_the_team.md)