Merge branch 'doc/update_install_info' into 'master'

DOC: Update documentation for new release process.

Closes #21

See merge request !39
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Status Name Job ID Coverage
  Doc
passed pages #56537

00:03:13

 
  Fsl Ci Build
passed update-conda-recipe #56538
fsl-ci docker

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  Deploy
passed pages:deploy

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