Add examples to the documentation page

• Type: User Story
• Resolution: Fixed
• Priority: P2: Important
• Fix Version/s: 6.1
• Affects Version/s: None
• Component/s: Documentation
• Labels:

  None

For Gerrit Dashboard: PYSIDE-1490
#	Subject	Branch	Project	Status	CR	V
332892,4	examples: directory structure	dev	pyside/pyside-setup	Status: MERGED	+2	0
333338,10	doc: add tool to generate examples gallery	dev	pyside/pyside-setup	Status: MERGED	+2	0
333451,3	examples: directory structure	6.0	pyside/pyside-setup	Status: MERGED	+2	0
333463,2	doc: add tool to generate examples gallery	6.0	pyside/pyside-setup	Status: MERGED	+2	0
333522,2	doc: use example gallery tool in build process	dev	pyside/pyside-setup	Status: MERGED	+2	0
333799,2	Silence the example_gallery tool	dev	pyside/pyside-setup	Status: MERGED	+2	0
333807,2	doc: use example gallery tool in build process	6.0	pyside/pyside-setup	Status: MERGED	+2	0
333889,4	Silence the example_gallery tool	6.0	pyside/pyside-setup	Status: MERGED	+2	0
334637,3	Fix the example_gallery quiet option for quiet mode	dev	pyside/pyside-setup	Status: MERGED	+2	0
334667,2	Fix the example_gallery quiet option for quiet mode	6.0	pyside/pyside-setup	Status: MERGED	+2	0
343732,2	tools: display screenshot in example gallery	dev	pyside/pyside-setup	Status: MERGED	+2	0
343790,2	tools: display screenshot in example gallery	6.0	pyside/pyside-setup	Status: MERGED	+2	0