updated recipe comments
## - version
## - source.sha256
##
-## Note: run the following commands from within the recipes/doubtlab.
-## $ . ./fetch_sha256.sh
-## $ pypi_sha256 "doubtlab" "0.1.1" # this will give you the sha256
-##
## 2. [THIS IS A MANUAL PROCESS]
## Crosscheck and update the package dependency versions under:
## - requirements.host
