Instructions needs updating

[Gleeful2862]

Looks like the repo has been updated to require using pnpm instead of npm - but the instructions are still suggesting to use npm.

npm install @chatbotkit/sdk

Also - when I run pnpm install @chatbotkit/sdk - I am getting

ERR_PNPM_ADDING_TO_ROOT  Running this command will add the dependency to the workspace root, which might not be what you want - if you really meant it, make it explicit by running this command again with the -w flag (or --workspace-root). If you don't want to see this warning anymore, you may set the ignore-workspace-root-check setting to true.

Does the dependency need to be really added to workspace root?