Fix a few minor formatting issues in documentation #825

Job	Run time
Determine Python versions	9s
Run linters with pre-commit	1m 0s
Test building the documentation	2m 5s
Python 3.12 on ubuntu-20.04 (standalone: false, 32bit: false)	2m 5s
Python 3.12 on ubuntu-20.04 (standalone: false, 32bit: true)	2m 4s
Python 3.12 on ubuntu-20.04 (standalone: true, 32bit: false)	2m 6s
Python 3.12 on ubuntu-20.04 (standalone: true, 32bit: true)	2m 5s
Python 3.12 on windows-2019 (standalone: false, 32bit: false)	1m 49s
Python 3.12 on windows-2019 (standalone: false, 32bit: true)	2m 2s
Python 3.12 on windows-2019 (standalone: true, 32bit: false)	1m 59s
Python 3.12 on windows-2019 (standalone: true, 32bit: true)	1m 50s
Python 3.12 on macOS-11 (standalone: false, 32bit: false)	1s
Python 3.12 on macOS-11 (standalone: false, 32bit: true)	1s
Python 3.12 on macOS-11 (standalone: true, 32bit: false)	1s
Python 3.12 on macOS-11 (standalone: true, 32bit: true)	1s
Python 3.9 on ubuntu-20.04 (standalone: false, 32bit: false)	2m 5s
Python 3.9 on ubuntu-20.04 (standalone: true, 32bit: false)	2m 4s
Indicate completion to coveralls.io	1s
	23m 28s

Provide feedback