Update GH PR checklist (#1357)

* fixes #1346, parsing of diff-time as property

* reflect current documentation strategy

.github/pull_request_template.md

@@ -2,7 +2,8 @@ PR checklist:
 
 * [ ] Test coverage for the proposed changes
 * [ ] PR description contains example output from repl interaction or a snippet from unit test output
-* [ ] Documentation has been updated if new natives or FV properties have been added. To generate new documentation, issue `cabal run tests`. If they pass locally, docs are generated.
+* [ ] New builtins have a FV translation
+* [ ] Documentation has been (manually) updated at https://docs.kadena.io/pact
 * [ ] Any changes that could be relevant to users [have been recorded in the changelog](https://github.com/kadena-io/pact/blob/master/CHANGELOG.md)
 * [ ] In case of  changes to the Pact trace output (`pact -t`), make sure [pact-lsp](https://github.com/kadena-io/pact-lsp) is in sync.