Fix a few Doxygen warnings

Author: Martchus

io/buffersearch.h

@@ -60,7 +60,7 @@ inline void BufferSearch::operator()(std::string_view buffer)
 }
 
 /*!
- * \brief Processes the specified \a buffer which is a shared array with fixed \tp bufferCapacity. Invokes the callback according to the remarks mentioned in the class documentation.
+ * \brief Processes the specified \a buffer which is a shared array with fixed \tparam bufferCapacity. Invokes the callback according to the remarks mentioned in the class documentation.
  */
 template <std::size_t bufferCapacity>
 inline void BufferSearch::operator()(std::shared_ptr<std::array<std::string_view::value_type, bufferCapacity>> buffer, std::size_t bufferSize)

misc/flagenumclass.h

@@ -6,14 +6,14 @@
 namespace CppUtilities {
 
 /*!
- * \brief The IsFlagEnumClass class is used to decide whether to enable operations for flag enums for \tp T.
+ * \brief The IsFlagEnumClass class is used to decide whether to enable operations for flag enums for \tparam T.
  * \remarks This class is still experimental and might be changed or removed in future minior releases.
  */
 template <typename T> struct IsFlagEnumClass : public Traits::Bool<false> {};
 
 // clang-format off
 /*!
- * \def The CPP_UTILITIES_MARK_FLAG_ENUM_CLASS macro enables flag enum operators for \a EnumClassType within namespace \a Namespace.
+ * \brief The \def CPP_UTILITIES_MARK_FLAG_ENUM_CLASS macro enables flag enum operators for \a EnumClassType within namespace \a Namespace.
  * \remarks
  * - Must be used outside a namespace.
  * - This macro is still experimental and might be changed or removed in future minior releases.