Remove some redundancy

We are aware that we are looking at GStreamer's documentation.

Also, change the title of Home.markdown to remove "SDK".

GStreamer+reference.markdown

@@ -1,14 +1,8 @@
 ---
-short-description: GStreamer API reference
+short-description: API reference
 ...
 
-# GStreamer reference
+The complete documentation for the GStreamer API, automatically
+generated from the source code of GStreamer is available [here]
 
-This is the complete documentation for the GStreamer API, automatically
+[here]: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/
-generated from the source code of GStreamer.
-
-> ![forbiden]This documentation is still being prepared. Meanwhile, all
-> links in the tutorials point to [the GStreamer documentation] ressources.
-
-  [forbiden]: images/icons/emoticons/forbidden.png
-  [the GStreamer documentation]: https://gstreamer.freedesktop.org/documentation/

Home.markdown

@@ -1,6 +1,6 @@
 # GStreamer documentation
 
-## Welcome to the GStreamer SDK documentation!
+## Welcome to the GStreamer documentation!
 
 Feel free to jump straight to the download section, start practicing
 with the tutorials, or read the F.A.Q. if you don’t know what this is

manual-index.md

@@ -1,9 +1,9 @@
 ---
-title: GStreamer Application Development Manual
+title: Application Development Manual
 short-description: Complete walkthrough for building an application using GStreamer
 ...
 
-# GStreamer Application Development Manual
+# Application Development Manual
 
 # Foreword
 

pwg-index.md

@@ -1,6 +1,6 @@
 ---
-title: GStreamer Plugin Writer's Guide
+title: Plugin Writer's Guide
 short-description: Complete walkthrough for writing your very own GStreamer plugin
 ...
 
-# GStreamer Plugin Writer's Guide
+# GStreamer Writer's Guide