Adding conda as a dependency for Merlion dashboard

[anjanashankar9]

Merlion dashboard expects conda to be installed on your system. However, no errors are thrown when installing salesforce-merlion[dashboard]. The server just does not start. Updating the readme to make this requirement explicit.

[salesforce-cla[bot]]

Thanks for the contribution! Unfortunately we can't verify the commit author(s): Anjana Shankar <a***@s***.com>. One possible solution is to add that email to your GitHub account. Alternatively you can change your commits to another email and force push the change. After getting your commits associated with your GitHub account, refresh the status of this Pull Request.

[salesforce-cla[bot]]

Thanks for the contribution! It looks like @anjanashankar9 is an internal user so signing the CLA is not required. However, we need to confirm this.

[Emerald01]

@anjanashankar9 Can you complete the salesforce CLA so we can merge your PR?