[atk] Documentation: Fix tiny typos.

[Murray Cumming <murrayc src gnome org>]

commit f892f4739162dfd0b85144bf385bf12d318d06b9
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Mar 24 19:57:48 2015 +0100

    Documentation: Fix tiny typos.

 atk/atkdocument.c |    2 +-
 atk/atkvalue.c    |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/atk/atkdocument.c b/atk/atkdocument.c
index 17614e6..4e7245a 100755
--- a/atk/atkdocument.c
+++ b/atk/atkdocument.c
@@ -200,7 +200,7 @@ atk_document_get_document_type (AtkDocument *document)
  * how to cast this pointer.
  *
  * Deprecated: Since 2.12. @document is already a representation of
- * the document. Use it directly, or one of his children, as an
+ * the document. Use it directly, or one of its children, as an
  * instance of the DOM.
  *
  * Returns: (transfer none): a %gpointer that points to an instance of the DOM.
diff --git a/atk/atkvalue.c b/atk/atkvalue.c
index 839601b..adabeb8 100755
--- a/atk/atkvalue.c
+++ b/atk/atkvalue.c
@@ -527,7 +527,7 @@ atk_value_set_current_value (AtkValue       *obj,
  *
  * Gets the current value and the human readable text alternative of
  * @obj. @text is a newly created string, that must be freed by the
- * caller. Can be NULL if not descriptor is available.
+ * caller. Can be NULL if no descriptor is available.
  *
  * Since: 2.12
  **/