[#96] Add function documentation to BufferManager

include/vkcv/BufferManager.hpp

@@ -132,6 +132,12 @@ namespace vkcv
 		 */
 		void unmapBuffer(const BufferHandle& handle);
 		
+		/**
+		 * Record a memory barrier for a buffer, synchronizing subsequent accesses to buffer data
+		 *
+		 * @param handle #BufferHandle of the buffer
+		 * @param cmdBuffer Vulkan command buffer to record the barrier into
+		*/
 		void recordBufferMemoryBarrier(
 			const BufferHandle& handle,
 			vk::CommandBuffer cmdBuffer);