Minor fixes

Author: seisman

doc/maintenance.md

@@ -95,9 +95,9 @@ controlled by workflow files located in `.github/workflows`. Here we briefly
 summarize the functions of the workflows. Please refer to the comments in the
 workflow files for more details.
 
-- `benchmarks.yml`: Benchmarks the execution speed of tests to track performance of PyGMT functions
-- `cache_data.yaml`: Cache GMT remote data files and uploads as artifacts
-- `cache_dvc.yaml`: Cache baseline images tracked by DVC and upload as artifacts.
+- `benchmarks.yml`: Benchmark the execution speed of tests to track performance of PyGMT functions
+- `cache_data.yaml`: Cache GMT remote data files and upload as artifacts
+- `cache_dvc.yaml`: Cache baseline images tracked by DVC and upload as artifacts
 - `check-links.yml`: Check links in the repository and documentation
 - `ci_docs.yml`: Build documentation on Linux/macOS/Windows and deploy to GitHub
 - `ci_doctest.yaml`: Run all doctests on Linux/macOS/Windows