Added link to doxygen documentation

Author: SV-Zanshin

README.md

@@ -30,6 +30,6 @@ Up to 8 devices can be put on an I2C and the library allows several memories to
   </tr>
 </table>
 
-See the [Wiki pages](https://github.com/SV-Zanshin/MB85_FRAM/wiki) for details of the class and the variables / functions accessible in it.
+See the [Wiki pages](https://github.com/SV-Zanshin/MB85_FRAM/wiki) for details of the class and the [Doxygen Documentation](https://sv-zanshin.github.io/MB85_FRAM/html/index.html) for detailed class documentation.
 
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