Fix formatting in Browser section of README.md

Hey all! I saw strange formatting in the README.md and figured it was an extra three backticks ```

Sure enough, deleting those made the section render as intended. I also reworded one of the sentences that had three "and"s to make it a little more legible.

Author: derrekcoleman

README.md

@@ -99,9 +99,9 @@ pnpm clean
 
 ### Interact via Browser
 
-```
 Once the agent is running, you should see the message to run "pnpm start:client" at the end.
-Open another terminal and move to same directory and then run below command and follow the URL to chat to your agent.
+
+Open another terminal, move to same directory, run the command below, then follow the URL to chat with your agent.
 
 ```bash
 pnpm start:client