doc/howto_release.txt: minor updates

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@73767 15284696-431f-4ddb-bdfa-cd5b030d7da7

doc/howto_release.txt

@@ -205,10 +205,10 @@ vim grass-addons/tools/wingrass-packager/grass_copy_wwwroot.sh
 
 # trac updates, only when new major release:
   - Add new release to https://trac.osgeo.org/grass/admin/ticket/versions
-  - Set "complete" flag in https://trac.osgeo.org/grass/milestone/7.4.x --> Edit Milestone
-    - also: Retarget associated open tickets to milestone 7.4.x
+  - Set "complete" flag in https://trac.osgeo.org/grass/milestone/7.6.x --> Edit Milestone
+    - also: Retarget associated open tickets to milestone 7.6.x
   - Batch modify tickets, set to next milestone (update this query accordingly: two entries to change)
-     https://trac.osgeo.org/grass/query?status=assigned&status=new&status=reopened&milestone=7.4.0&milestone=7.4.1&group=status&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority
+     https://trac.osgeo.org/grass/query?status=assigned&status=new&status=reopened&milestone=7.6.0&milestone=7.6.1&group=status&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority
      - Set max items to 1000, then select all shown tickets via Status: assigned/new/reopened sections
      - Scroll down to "Batch modify": under the "Comment" section, add Field "Milestone" and set to next version
      - then use "Change ticket" button, done.
@@ -227,11 +227,11 @@ vim grass-addons/tools/wingrass-packager/grass_copy_wwwroot.sh
 
   - Update addons (grass_addons.sh) rules, eg.
 
-     compile $SVN_PATH/grass7 $GISBASE_PATH/grass770RC1   $ADDON_PATH/grass770RC1/addons
+     compile $SVN_PATH/grass7 $GISBASE_PATH/grass760RC1   $ADDON_PATH/grass760RC1/addons
 
   - Modify grass_copy_wwwroot.sh accordingly, eg.
 
-     copy_addon 761RC1 7.666666.1RC1
+     copy_addon 761RC1 7.6.1RC1
 
 # Launchpad notes: