Fix #39

[theidexisted]

Cpprefenre have changed their wiki to add template in header part:
Previous format:

std::basic_string::find

Current format:

std::basic_string<CharT,Traits,Allocator>::find

To remove the template with regex will fix the current break

[jeaye]

Thanks for the change! Would you mind doing one more generation, after adding Categories, Hidden category, and Hidden categories to the section list, similar to this manual addition? https://github.com/jeaye/stdman/blob/master/src/groff_section.hpp#L129

I see them showing up in the diff here, so they must be new:

• https://github.com/jeaye/stdman/pull/42/files#diff-3ac2eae84012a738a052fb9566c6861ebdd97eac0b7f1f4bed739ac1e85d6cbeR88
• https://github.com/jeaye/stdman/pull/42/files#diff-0827ddd16c3f9d48e7f32890ee7899b06f870d810a3e1813532d913ee546ae33R32

If you're not up for it, I can merge this, add the new sections, and then do another generation myself some time this week.

[theidexisted]

Thanks, I will follow up on your guides and commit the change latter.

I also suggest now we change the c++ version to c++17 since it's widely used today, what's your opinion?

[theidexisted]

I have added these new sections, could you please review it again.

[jeaye]

Thanks for the additional changes! Changing to C++17 is no problem, but we can do that in another PR.