Updates the link to the examples directory from the README so that it points to the correct location
Updates the link to the examples directory from the README so that it points to the correct location

slackapi/node-slack-sdk,slackapi/node-slack-sdk,peernohell/node-slack-client,peernohell/node-slack-client,slackhq/node-slack-sdk,slackapi/node-slack-sdk,slackhq/node-slack-client,slackapi/node-slack-sdk