docs: add hbarcelos to reviewers

Author: fnanni-0

contracts/kleros/xKlerosLiquid.sol

@@ -1,7 +1,7 @@
 /**
  *  https://contributing.kleros.io/smart-contract-workflow
  *  @authors: [@fnanni-0]
- *  @reviewers: [@shalzz*, @unknownunknown1*, @MerlinEgalite*, @hbarcelos*]
+ *  @reviewers: [@shalzz*, @unknownunknown1*, @MerlinEgalite*, @hbarcelos]
  *  @auditors: []
  *  @bounties: []
  *  @deployments: []