Broken links in the overview of C++ based sidescroller template

[vdlmrc]

The different links in the overview of

C++ based sidescroller template send to error 404 pages.

[Shadowriver]

Raport any documentation issues here:

https://forums.unrealengine.com/unreal-engine/feedback-for-epic/documentation-feedback/37100-reporting-issues-for-documentation

Documentation team look at it there frequently so it should reach them there.