Update Help files

[geeqie.git] / doc / docbook / GuideReferenceStandards.xml

diff --git a/doc/docbook/GuideReferenceStandards.xml b/doc/docbook/GuideReferenceStandards.xml
index 356f74d..e6676b9 100644 (file)
--- a/doc/docbook/GuideReferenceStandards.xml
+++ b/doc/docbook/GuideReferenceStandards.xml
@@ -11,7 +11,7 @@
   </para>\r
   <para>\r
     XMP:\r
-    <ulink url="http://www.adobe.com/content/dam/Adobe/en/devnet/xmp/pdfs/XMPSpecificationPart3.pdf" />\r
+    <ulink url="https://wwwimages2.adobe.com/content/dam/acom/en/devnet/xmp/pdfs/XMP%20SDK%20Release%20cc-2016-08/XMPSpecificationPart3.pdf" />\r
   </para>\r
   <para>\r
     IPTC4XMP:\r
@@ -19,6 +19,10 @@
   </para>\r
   <para>\r
     Pango mark up:\r
-    <ulink url="https://developer.gnome.org/pango/stable/PangoMarkupFormat.html" />\r
+    <ulink url="https://developer.gnome.org/pygtk/stable/pango-markup-language.html" />\r
+  </para>\r
+  <para>\r
+    Thumbnails:\r
+    <ulink url="https://specifications.freedesktop.org/thumbnail-spec/thumbnail-spec-latest.html" />\r
   </para>\r
 </section>\r