Smtp documentation update (#472)

* Clarifies fromAddress documentation

Documentation
IssueNumber: 236

Signed-off-by: Veymax <mcder018@live.com>

* Bumps version number per contributing guidelines

Signed-off-by: Veymax <mcder018@live.com>

* Update charts/nextcloud/Chart.yaml - don't bump chart

Signed-off-by: JesseBot <jessebot@linux.com>

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Signed-off-by: Veymax <mcder018@live.com>
Signed-off-by: JesseBot <jessebot@linux.com>
Co-authored-by: JesseBot <jessebot@linux.com>

Author: MaximUltimatum