message: Add troubleshooting section to documentation
  * Add troubleshooting section to documentation
  Added a new section to the documentation, along
  with a solution for MySQL 8 users.
  Resolves
  * Update documentation for MySQL 8
  * Remove unnecessary, duplicate documentation
diff: @@ -70,25 +70,30 @@ They will be passed to the pool constructor directly. See https://github.com/mtx
  ## Know Errors and How to Fix
  -### MySQL 8 and ER_NOT_SUPPORTED_AUTH_MODE
  +### MySQL 8 and `ER_NOT_SUPPORTED_AUTH_MODE`
  -MySQL 8 is available using xprotocol.
  +Potential solutions:
  -See issue [#195](https://github.com/mtxr/vscode-sqltools/issues/195).
  +* Ensure you've set `authProtocol` to `xprotocol`
  +* Add a trailing `0` to the `port`. See the [MySQL Guide to Ports](https://mysqlserverteam.com/mysql-guide-to-ports/)
  -This error can be probably fixed using `mysqlOptions`. See:
  +Example configuration:
  ```json
  -[
  {
  - ...
  + "sqltools.connections": [
  + {
  + "askForPassword": true,
  + "connectionTimeout": 30,
  "dialect": "MySQL",
  - "port": 33060, // Take a look at MySQL ports section in https://mysqlserverteam.com/mysql-guide-to-ports/
  + "name": "LocalHost",
  + "port": 33060,
  + "server": "127.0.0.1",
  + "username": "root",
  "mysqlOptions": {
  - "authProtocol": "xprotocol",
  - "ssl": true
  + "authProtocol": "xprotocol"
  }
  }
  ]
  -...
  +}
  ```
  