docs(mf6io): update mf6io markdown and tex files (#1591) #11

Job	Run time
Set release options	3s
Draft reset PR	0s
Draft release	0s
Make distribution / Build binaries (ubuntu-20.04)	23m 17s
Make distribution / Build binaries (macos-12)	28m 59s
Make distribution / Build binaries (windows-2022)	29m 18s
Make distribution / Build docs	7m 34s
Make distribution / Build distribution (ubuntu-22.04)	7m 32s
Make distribution / Build distribution (macos-12)	10m 50s
Make distribution / Build distribution (windows-2022)	11m 58s
Draft release PR	17s
	1h 59m 48s

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