Add extra points to "What to add to VC"

Author: jackdfranklin

src/version_control.qmd

@@ -23,8 +23,11 @@ it will be true.
 
 ## What to add to VC
 
-- If you have large datafiles that are needed for your work, you should host
-  them separately (e.g. on Zenodo) and link to them in your repository
+- Large datafiles should be hosted separately (e.g. on Zenodo)
+- External dependencies should be declared
+  - e.g. link to Zenodo dataset in docs and code
+- Use .gitignore to automatically ignore any unwanted files
+  - e.g. build outputs
 
 ## What to do next?