fix link tutorial.navigation in index.rst
Fixed typo in tutorials
Merge pull request #726 from Spabby/master

bugfix/index.rst
Thanks Gary
Merge pull request #725 from samsonasik/fix-linkindex

fix link tutorial.navigation in index.rst

Conflicts:
	docs/languages/en/index.rst
Merge branch 'hotfix/725'

Close #725
fix prev-next in tutorial.navigation page
Merge pull request #727 from samsonasik/fix/next-prevlink

show prev-next link in tutorial.navigation page
Merge branch 'hotfix/727'

Close #727