doc: small improvement and fixes

- Add an example to g_strsplit(), like it is done for g_strsplit_set().

- GTK-Doc generates a list if a "1." is at the beginning of a line.

https://bugzilla.gnome.org/show_bug.cgi?id=732704

glib/gstrfuncs.c

@@ -2246,6 +2246,10 @@ g_strchomp (gchar *string)
  * @delimiter. If @max_tokens is reached, the remainder of @string is
  * appended to the last token.
  *
+ * As an example, the result of g_strsplit (":a:bc::d:", ":", -1) is a
+ * %NULL-terminated vector containing the six strings "", "a", "bc", "", "d"
+ * and "".
+ *
  * As a special case, the result of splitting the empty string "" is an empty
  * vector, not a vector containing a single string. The reason for this
  * special case is that being able to represent a empty vector is typically
@@ -2325,7 +2329,7 @@ g_strsplit (const gchar *string,
  * %NULL-terminated vector containing the three strings "abc", "def",
  * and "ghi".
  *
- * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
+ * The result of g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
  * vector containing the four strings "", "def", "ghi", and "".
  *
  * As a special case, the result of splitting the empty string "" is an empty