Broken/missing link to blank project scoping worksheet

[harrietrs]

👋 everyone! I find the project scoping guide really helpful and refer to it a lot.

Your link to the Blank Project Scoping Worksheet in sources/curriculum/scoping/overview.md is broken.

This might be the same file as the one on the DSSG website. If so, it would be helpful for this to be in an accessible and/or editable format (i.e. not pdf), to make it easier to use.