[GRASS-git] [OSGeo/grass-addons] 52e878: contributing: Simplify branch instructions (#928)

[Vaclav Petras]

  Branch: refs/heads/grass8
  Home:   https://github.com/OSGeo/grass-addons
  Commit: 52e878b251f1541eb6847821211f1dba0d3e198a
      https://github.com/OSGeo/grass-addons/commit/52e878b251f1541eb6847821211f1dba0d3e198a
  Author: Vaclav Petras <wenzeslaus at gmail.com>
  Date:   2023-07-18 (Tue, 18 Jul 2023)

  Changed paths:
    M CONTRIBUTING.md

  Log Message:
  -----------
  contributing: Simplify branch instructions (#928)

- First fetch, then switch to branch (branch is not available before the first fetch unless clone was from upstream).
- Use switch for switch to branch including its creation, not less readable checkout.
- git stash pop applies and removes, so just use that (no old stashes are accumulated).
- Mention GitHub CLI in PRs which is where it would simplify this workflow.