Update design-philosophy.rst

Author: Evolutionary-Intelligence

docs/sphinx/source/design-philosophy.rst

@@ -177,10 +177,15 @@ Papers of Critical Analyses
 
 * 2024: `Exposing the *** optimization algorithm: A misleading metaheuristic technique with structural bias
   <https://www.sciencedirect.com/science/article/pii/S156849462400348X>`_
+* 2020: `Nature inspired optimization algorithms or simply variations of metaheuristics?
+  <https://link.springer.com/article/10.1007/s10462-020-09893-8>`_
 * 2015: `A critical analysis of the *** search algorithm—How not to solve sudoku
   <https://www.sciencedirect.com/science/article/pii/S221471601500010X>`_
 * 2010: `A rigorous analysis of the *** search algorithm: How the research community can be misled by a
   "novel" methodology
   <https://www.igi-global.com/article/rigorous-analysis-harmony-search-algorithm/44954>`_
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