Fix indentation. Update doxygen comments

include/sta/uart.hpp

@@ -9,41 +9,50 @@
 #include <cstdint>
 
 
+/**
+ * @defgroup sta_core_uart UART
+ * @ingroup sta_core
+ * @brief UART interface.
+ */
+
+
 namespace sta
 {
-	/**
-	 * @brief Interface for %UART.
-	 */
-	class UART
-	{
-	public:
-		/**
-		 * @brief Write buffer to %UART.
-		 *
-		 * @param buffer    Source buffer
-		 * @param size      Number of bytes in buffer
-		 */
-		virtual void write(const uint8_t * buffer, size_t size) = 0;
+    /**
+        * @brief Interface for %UART.
+        *
+        * @ingroup sta_core_uart
+        */
+    class UART
+    {
+    public:
+        /**
+         * @brief Write buffer to %UART.
+         *
+         * @param buffer    Source buffer
+         * @param size      Number of bytes in buffer
+         */
+        virtual void write(const uint8_t * buffer, size_t size) = 0;
 
-		/**
-		 * @brief Write unsigned integer to %UART.
-		 *
-		 * @param value     Unsigned integer value
-		 */
-		void write(uint8_t value);
-		/**
-		 * @brief Write unsigned integer to %UART.
-		 *
-		 * @param value     Unsigned integer value
-		 */
-		void write(uint16_t value);
-		/**
-		 * @brief Write unsigned integer to %UART.
-		 *
-		 * @param value     Unsigned integer value
-		 */
-		void write(uint32_t value);
-	};
+        /**
+         * @brief Write unsigned integer to %UART.
+         *
+         * @param value     Unsigned integer value
+         */
+        void write(uint8_t value);
+        /**
+         * @brief Write unsigned integer to %UART.
+         *
+         * @param value     Unsigned integer value
+         */
+        void write(uint16_t value);
+        /**
+         * @brief Write unsigned integer to %UART.
+         *
+         * @param value     Unsigned integer value
+         */
+        void write(uint32_t value);
+    };
 } // namespace sta