Fix two minor typos

docker/README.md

@@ -10,7 +10,7 @@ Handy commands:
 
 Ideally manual running of docker containers is for advanced users, we recommend the script based approach described below for most users.
 
-The `scripts/build_run_docker_tests.sh` script will cover most usecases. The script allows the user to configure the fork(altair/bellatrix/capella..), `$IMAGE_NAME` (specifies the container to use), preset type (mainnet/minimal), and test all forks flags. Ideally, this is the main way that users interact with the spec tests instead of running it locally with varying versions of dependencies.
+The `scripts/build_run_docker_tests.sh` script will cover most use cases. The script allows the user to configure the fork(altair/bellatrix/capella..), `$IMAGE_NAME` (specifies the container to use), preset type (mainnet/minimal), and test all forks flags. Ideally, this is the main way that users interact with the spec tests instead of running it locally with varying versions of dependencies.
 
 E.g:
 - `./build_run_docker_tests.sh --p mainnet` will run the mainnet preset tests

specs/_features/custody_game/beacon-chain.md

@@ -619,7 +619,7 @@ def process_custody_slashing(state: BeaconState, signed_custody_slashing: Signed
         for attester_index in attesters:
             if attester_index != custody_slashing.malefactor_index:
                 increase_balance(state, attester_index, whistleblower_reward)
-        # No special whisteblower reward: it is expected to be an attester. Others are free to slash too however.
+        # No special whistleblower reward: it is expected to be an attester. Others are free to slash too however.
     else:
         # The claim was false, the custody bit was correct. Slash the whistleblower that induced this work.
         slash_validator(state, custody_slashing.whistleblower_index)