link logo to spec

Author: rouault

README.md

@@ -3,7 +3,7 @@
 This repository contains the [specification](sozip_specification.md) for the SOZip
 (Seek-Optimized Zip) profile to the ZIP file format.
 
-[![Logo](images/logo.png)](#here)
+[![Logo](images/logo.png)](sozip_specification.md)
 
 # What is SOZip ?
 

blog/01-announcement.md

@@ -6,7 +6,7 @@ We are delighted to announce the initial release of the
 [specification](../sozip_specification.md) for the SOZip (Seek-Optimized Zip)
 profile to the ZIP file format.
 
-![Logo](../images/logo.png)
+[![Logo](../images/logo.png)](../sozip_specification.md)
 
 ## What is SOZip ?