docs: remove extra period

Author: wesleyboar

README.md

@@ -16,7 +16,7 @@ https://cep.tacc.utexas.edu/
 >    — replace `custom-cms` with the name of this project's CMS image.
 > 3. Delete `/docs` directory (so it does not become outdated).
 > 4. [Start the project.][core-cms-template-start]
-> 5. [Configure the project.][core-cms-template-configure].
+> 5. [Configure the project.][core-cms-template-configure]
 > 6. Adapt or Remove "[Quick Start](#quick-start)" according to your project.
 > 7. **Delete this notice.**