algo: Add docstring to Sort function.

algo/base/compat/Algorithm.h

@@ -39,6 +39,12 @@ namespace cbm::algo
 #endif  // WITH_EXECUTION
   }  // namespace detail
 
+  /**
+   * @brief Wrapper for std::sort
+   *
+   * Attempts to use the parallel version of std::sort if available. Falls back to the sequential version otherwise.
+   * Parallel version currently requires Linux, GCC compiler and libTBB.
+  */
   template<typename It, typename Compare>
   void Sort(It first, It last, Compare comp)
   {