fix typo in include guard

Author: daixtrose

polymorphism/include/polymorphism/consume_class_that_adheres_to_concept.hpp

@@ -1,5 +1,5 @@
-#ifndef POYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP
-#define POYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP
+#ifndef POLYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP
+#define POLYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP
 
 #include <polymorphism/has_super_cool_features.hpp>
 
@@ -12,4 +12,4 @@ std::string consume(has_super_cool_features auto& s);
 
 } // namespace modern
 
-#endif // POYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP
+#endif // POLYMORPHISM_CONSUME_CLASS_THAT_ADHERES_TO_CONCEPT_HPP