docs: A bit more info and formatting for Eina_Process_Cb

Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D11063

src/lib/eina/eina_iterator.h

@@ -377,7 +377,7 @@ EAPI Eina_Iterator *eina_multi_iterator_internal_new(Eina_Iterator *it, ...) EIN
  *
  * Processes every node in the input iterator and returns a new iterator containing
  * the processed nodes. This is akin to a Map function:
- * @see https://en.wikipedia.org/wiki/Map_(higher-order_function)
+ * https://en.wikipedia.org/wiki/Map_(higher-order_function)
  *
  * @since 1.24
  */

src/lib/eina/eina_types.h

@@ -542,7 +542,11 @@ typedef int (*Eina_Random_Cb)(const int min, const int max);
 /**
  * @typedef Eina_Process_Cb
  * Method that processes some data and returns new data.
- * It's meant to be used as a callback to process all nodes inside a container (See eina_iterator_processed_new, for example.)
+ * It's meant to be used as a callback to process all nodes inside a container
+ * (See eina_iterator_processed_new, for example.)
+ * @param data The data to process.
+ * @param fdata Context data.
+ * @return The processed data.
  */
 typedef void* (*Eina_Process_Cb)(const void *container, void *data, void *fdata);