message: Documentation: Render formuals by means of MathJax 3
  Oops left test version in it.
diff: @@ -44,7 +44,7 @@ if(DOXYGEN_FOUND)
  set(GUDHI_DOXYGEN_UTILS_PATH "utilities/*")
  endif()
  - if (DOXYGEN_VERSION VERSION_LESS 1.9.7)
  + if (DOXYGEN_VERSION VERSION_LESS 1.9.2)
  set(GUDHI_DOXYGEN_MATHJAX_VERSION "MATHJAX_VERSION = MathJax_2")
  set(GUDHI_DOXYGEN_MATHJAX_EXTENSIONS "TeX/AMSmath TeX/AMSsymbols")
  else()
  