[atk] doc: improve ATK_TEXT_ATTR documentation

[Alejandro Piñeiro Iglesias <apinheiro src gnome org>]

commit 864e0d3e34f282bcc64f3076ee3bd2e1788e91ba
Author: Alejandro Piñeiro <apinheiro igalia com>
Date:   Mon Nov 18 16:25:40 2013 +0100

    doc: improve ATK_TEXT_ATTR documentation

 atk/atktext.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/atk/atktext.h b/atk/atktext.h
index dd73200..2808fc6 100755
--- a/atk/atktext.h
+++ b/atk/atktext.h
@@ -32,7 +32,7 @@ G_BEGIN_DECLS
 
 /**
  *AtkTextAttribute:
- * ATK_TEXT_ATTR_INVALID: Invalid attribute
+ * ATK_TEXT_ATTR_INVALID: Invalid attribute, like bad spelling or grammar.
  * ATK_TEXT_ATTR_LEFT_MARGIN: The pixel width of the left margin
  * ATK_TEXT_ATTR_RIGHT_MARGIN: The pixel width of the right margin
  * ATK_TEXT_ATTR_INDENT: The number of pixels that the text is indented
@@ -45,7 +45,7 @@ G_BEGIN_DECLS
  * ATK_TEXT_ATTR_RISE: Number of pixels that the characters are risen above the baseline
  * ATK_TEXT_ATTR_UNDERLINE: "none", "single", "double", "low", or "error"
  * ATK_TEXT_ATTR_STRIKETHROUGH: "true" or "false" whether the text is strikethrough 
- * ATK_TEXT_ATTR_SIZE: The size of the characters. 
+ * ATK_TEXT_ATTR_SIZE: The size of the characters in points. eg: 10
  * ATK_TEXT_ATTR_SCALE: The scale of the characters. The value is a string representation of a double 
  * ATK_TEXT_ATTR_WEIGHT: The weight of the characters.
  * ATK_TEXT_ATTR_LANGUAGE: The language used