docs($q): correct typo in the 'Differences Q/$q' section

Closes #5230
docs($route): clarify examples of route parameters

Putting route parameter examples in braces was misleading newcomers.

Closes #5243
docs(input): remove redundant closing span tag

Closes #5257
style($route): make jshint happy

Fix the broken build and earn a late (french spelling).
docs(design): guide index formatting

Just my first pass at a more readable format of the guide index.

Note: the styles apply to all content in the docs, not just the guide
index. This is intentional and I feel that the result is positive.
docs(TRIAGING): Labels cla yes/no are automatically set

The labels are set by a script and
should not be set manually any more.
docs(TRIAGING): Add Type:Perf label