Getting started failing to compile when asked to run `cargo build`

[seam345]

Unsure if this is intentional but running cargo build at this point

will fail with the bellow, which may confuse new users

error: failed to load manifest for workspace member `/shared_types`

Caused by:
  failed to read `/shared_types/Cargo.toml`

Caused by:
  No such file or directory (os error 2)

removing the additional members from here obviously breaks the example but will allow cargo build to pass at this point