message: Some modifications to file format documentation (utf8 test)
diff: @@ -34,18 +34,19 @@ namespace Gudhi {
  Such a file, whose extension is usually `.pers`, contains a list of persistence intervals.<br>
  Lines starting with `#` are ignored (comments).<br>
  Other lines might contain 2, 3 or 4 values (the number of values on each line must be the same for all lines):
  - \code{.unparsed}
  + \verbatim
  [[field] dimension] birth death
  - \endcode
  + \endverbatim
  Here is a simple sample file:
  - \code{.unparsed}
  - # Beautiful persistence diagram
  + \verbatim
  + # Persistence diagram example
  2 2.7 3.7
  2 9.6 14.
  + # Some comments
  3 34.2 34.974
  4 3. inf
  - \endcode
  + \endverbatim
  Other sample files can be found in the `data/persistence_diagram` folder.
  */
  