0.1.1

Quick bugfix release

• Add more examples
• Fix #8: Fix segfault when using scn::cstdin() or scn::wcstdin(),
  caused by the copy and move constructor of small_vector setting data pointer to nullptr
  if copying/moving from an empty small_vector.
  (Thanks @SuperWig for reporting!)
• Fix compilation error when using scn::ranges::get_value.
• Fix a badge in README (thanks @p1v0t)