Fix minor typo and broken link in documentation
requested to merge havocado/copy-of-krita-documentation-website:havocado/fix-broken-link into master
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The link for "open request" directs to https://invent.kde.org/graphics/krita.git/merge_requests?scope=all&utf8=%E2%9C%93&state=opened, which doesn't work. Replaced with https://invent.kde.org/graphics/krita/-/merge_requests?scope=all&state=opened.
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Fixed minor typos
Edited by Hailey A.