Add another tip to setup permissions in dev environnement.

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes
| Applies to    | all
| Fixed tickets | n/a
Update installation.rst

Fixed typo
Updated tip with latest comments
Rephrase
minor #3563 Add another tip to setup permissions (tony-co)

This PR was submitted for the 2.4 branch but it was merged into the 2.3 branch instead (closes #3563).

Discussion
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Add another tip to setup permissions

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes
| Applies to    | all
| Fixed tickets | n/a

This is a quick tip on the installation guide to use the same user for CLI and HTTP.

Commits
-------

0d5bcd7 Rephrase
625369a Updated tip with latest comments
b955d99 Update installation.rst
1aaa291 Add another tip to setup permissions in dev environnement.