Update to the docs (#5106)

* Perform transaction

* Remove lighthouse/beacon/states/{state_id}/ssz

* Update database api example

* Update checkpoint sync

* minor update

* single beacon node

* add info in mev

* Merge remote-tracking branch 'origin/unstable' into testnet

* add builder_boost_factor example

* change to 50 for consistency

scripts/local_testnet/beacon_node.sh

@@ -67,4 +67,5 @@ exec $lighthouse_binary \
 	--target-peers $((BN_COUNT - 1)) \
   --execution-endpoint $execution_endpoint \
   --execution-jwt $execution_jwt \
+  --http-allow-sync-stalled \
   $BN_ARGS