docs: Fix links in overview (#426)

Author: CheyenneAtapour

docs/gho-stewards.md

@@ -4,7 +4,7 @@ These contracts each control different parameters related to GHO and its facilit
 
 Each Steward is designed to have a specific set of segregated responsibilities in an effort to avoid having to redeploy the entire original Steward. Instead, only the specific steward whose responsibilities are affected will have to be redeployed.
 
-### [GhoAaveSteward](src/contracts/misc/GhoAaveSteward.sol)
+### [GhoAaveSteward](/src/contracts/misc/GhoAaveSteward.sol)
 
 This Steward manages parameters related to the GHO token. Specifically, it allows the Risk Council to change the following parameters:
 
@@ -21,18 +21,18 @@ In addition, the Aave DAO is allowed to change the configuration for the GHO Bor
 
 For example, the Aave DAO can specify that the optimalUsageRatio variable may only be changed by 3% at a time.
 
-### [GhoBucketSteward](src/contracts/misc/GhoBucketSteward.sol)
+### [GhoBucketSteward](/src/contracts/misc/GhoBucketSteward.sol)
 
 This Steward allows the Risk Council to set the bucket capacities of controlled facilitators. Additionally, it allows the Aave DAO to add or remove controlled facilitators.
 
-### [GhoCcipSteward](src/contracts/misc/GhoCcipSteward.sol)
+### [GhoCcipSteward](/src/contracts/misc/GhoCcipSteward.sol)
 
 This Steward allows the management of parameters related to CCIP token pools. It allows the Risk Council to update the CCIP bridge limit, and to update the CCIP rate limit configuration.
 
-### [GhoGsmSteward](src/contracts/misc/GhoGsmSteward.sol)
+### [GhoGsmSteward](/src/contracts/misc/GhoGsmSteward.sol)
 
 This Steward allows the Risk Council to update the exposure cap of the GSM, and to update the buy and sell fees of the GSM.
 
-### [RiskCouncilControlled](src/contracts/misc/RiskCouncilControlled.sol)
+### [RiskCouncilControlled](/src/contracts/misc/RiskCouncilControlled.sol)
 
 This is a helper contract to define the approved Risk Council and enforce its authority to call permissioned functions.