Fixed build badge (#2863)

* typos

Signed-off-by: Sally MacFarlane <sally.macfarlane@consensys.net>

* master -> main

Signed-off-by: Sally MacFarlane <sally.macfarlane@consensys.net>

README.md

@@ -1,10 +1,10 @@
 # Besu Ethereum Client
- [![CircleCI](https://circleci.com/gh/hyperledger/besu/tree/master.svg?style=svg)](https://circleci.com/gh/hyperledger/besu/tree/master)
+ [![CircleCI](https://circleci.com/gh/hyperledger/besu/tree/master.svg?style=svg)](https://circleci.com/gh/hyperledger/besu/tree/main)
  [![Total alerts](https://img.shields.io/lgtm/alerts/g/hyperledger/besu.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/hyperledger/besu/alerts/)
  [![Language grade: Java](https://img.shields.io/lgtm/grade/java/g/hyperledger/besu.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/hyperledger/besu/context:java)
  [![Documentation Status](https://readthedocs.org/projects/hyperledger-besu/badge/?version=latest)](https://besu.hyperledger.org/en/latest/?badge=latest)
  [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3174/badge)](https://bestpractices.coreinfrastructure.org/projects/3174)
- [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/hyperledger/besu/blob/master/LICENSE)
+ [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/hyperledger/besu/blob/main/LICENSE)
  [![RocketChat chat](https://open.rocket.chat/images/join-chat.svg)](https://chat.hyperledger.org/channel/besu)
 
 [Download](https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/)

ethereum/permissioning/src/main/java/org/hyperledger/besu/ethereum/permissioning/AbstractNodeSmartContractPermissioningController.java

@@ -73,7 +73,7 @@ public abstract class AbstractNodeSmartContractPermissioningController
    *
    * @param sourceEnode The enode url of the node initiating the connection
    * @param destinationEnode The enode url of the node receiving the connection
-   * @return boolean of whether or not to permit the connection to occur
+   * @return boolean of whether to permit the connection
    */
   @Override
   public boolean isConnectionPermitted(

evm/src/main/java/org/hyperledger/besu/evm/worldstate/MutableWorldView.java

@@ -17,7 +17,7 @@ package org.hyperledger.besu.evm.worldstate;
 public interface MutableWorldView extends WorldView {
 
   /**
-   * Creates a updater for this mutable world view.
+   * Creates an updater for this mutable world view.
    *
    * @return a new updater for this mutable world view. On commit, change made to this updater will
    *     become visible on this view.