doc: Fix typo in path to example plugins

Change-Id: I41ab1aebe587f2d62d55f09c7bb7b7a361bf4a74
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
Prefer to use normalised signal/slot signatures

Change-Id: Ice08cb56ab25af5f273ed2bf8663717fa3a8224f
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Doc: Added link to "Qt for Android" pages to related pages.

-easier to go back to the main platform page from the sub-topics.

Change-Id: I1a39b196c1c02194af1f4073fb1a9e905526d910
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Fix some typos and grammar

Change-Id: Id713dccfcd34ce040995884f1cfacaf0ef347598
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Doc: Minor polishing

- Fix typos
- Reduce repetitions
- Improve expressions

Change-Id: If63a0faf0705ebe35fcfbe4955337a3c8c6acaf2
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>