[pkg] Fix doc-base section

As pointed by Lintian, the “Apps” section is only used in menu,
not in doc-base. We can just remove it.

--HG--
branch : 3.26

debian/changelog

@@ -8,6 +8,7 @@ cubicweb (3.26.12-2) UNRELEASED; urgency=medium
   * Specify priority “optional” instead of the obsolete “extra”.
   * Tidy substvars usage in control file.
   * Move lintian-overrides file to debian/source directory.
+  * Fix doc-base section.
 
  -- Denis Laxalde <denis.laxalde@logilab.fr>  Fri, 12 Jul 2019 11:54:09 +0200
 

debian/python-cubicweb-documentation.doc-base

@@ -2,7 +2,7 @@ Document: cubicweb-doc
 Title: CubicWeb Documentation
 Author: Logilab
 Abstract: Some base documentation for CubicWeb users and developpers
-Section: Apps/Programming
+Section: Programming
 
 Format: HTML
 Index: /usr/share/doc/python-cubicweb-documentation/html/index.html