fix linting errors

content/guides/getting-started/browser-to-browser.md

@@ -169,7 +169,6 @@ The `createLibp2p` invocation creates a libp2p peer which has its own associated
 
 This is the minimal configuration needed to establish a connection to the local bootstrapper. In the next step, you will use the frontend to connect to the bootstrapper.
 
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 {{< alert icon="💡" context="note">}}
 **Why is yamux needed?**
 
@@ -181,8 +180,6 @@ When a browser initiates the connection to another browser over a circuit relay,
 
 {{< /alert >}}
 
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 ## Step 4: Connect to the bootstrapper from the browser
 
 In this step, you will connect the browser js-libp2p peer to the go-libp2p bootstrapper peer.