docs: add custom base token config docs for worker #1612

All 2 146 tests pass, 1 skipped in 11m 52s

4 files ±0 264 suites ±0 11m 52s ⏱️ +9s
2 147 tests ±0 2 146 ✅ ±0 1 💤 ±0 0 ❌ ±0
2 361 runs ±0 2 360 ✅ ±0 1 💤 ±0 0 ❌ ±0

Results for commit b969124. ± Comparison against earlier commit 60904ac.