Micro-improve documentation.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 85.54%. Comparing base (3754a71) to head (7cebbca). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1304 +/- ## ======================================= Coverage 85.54% 85.54% ======================================= Files 178 178 Lines 13415 13415 ======================================= Hits 11476 11476 Misses 1939 1939 ```

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[bbpbuildbot]

Logfiles from GitLab pipeline #215540 (:white_check_mark:) have been uploaded here!

Status and direct links:

• :white_check_mark: spack_setup
• :white_check_mark: build:intel
• :white_check_mark: build:nvhpc
• :white_check_mark: test:intel
• :white_check_mark: test:nvhpc