was added -> was introduced
Fixed syntax
minor #3713 Updated versionadded directives to use "introduced" (WouterJ)

This PR was merged into the 2.3 branch.

Discussion
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Updated versionadded directives to use "introduced"

I was tired of explaining why we didn't update them on every created PR,
so I decided to just update them :P

| Q   | A
| --- | ---
| Doc fix? | yes
| New docs? | no
| Applies to | 2.3+
| Fixed tickets | many :)

Commits
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2884f18 Fixed syntax
c192278 was added -> was introduced