Update download links to releases

Change-Id: Ie6a660f7bdbb094a23217bc518926982a23aca35
Signed-off-by: Philippe DUL <philippe.dul@thalesgroup.com>
diff --git a/json/downloads.json b/json/downloads.json
index 805ac76..34cade1 100644
--- a/json/downloads.json
+++ b/json/downloads.json
@@ -2,6 +2,7 @@
   "$schema": "./download.schema.json",
   "versionBranch": "5.0.x",
   "lang": { 
+      "release": { "text": "Download", "icon": "fa fa-download" }, 
       "dropin": { "text": "Drop-in", "icon": "fa fa-download" }, 
       "updateSite": { "text": "Update Site", "icon": "fa fa-download" },
       "product": { "text": "Product", "icon": "fa fa-download" },
@@ -63,8 +64,7 @@
       "contact":"<a href='industry-consortium/thales.html' target='_blank'>Thales</a>",
       "description": "<p>This addon is a System to SubSystem Transition. It initializes a new Capella project from existing model. This transition extracts suitable model information from a selected Capella Component and manage top/down update propagation.</p><p>The automated and iterative transition between system and subsystems is a great help for managing several levels of engineering. The contract and model of the subsystems are computed from the system. Ideally, subsystems stakeholders are involved in co-engineering activities at system level before the transition occurs.</p><p>For more information, please install the addon within Capella and check dedicated section for the addon in Help Content or access to the <a href='https://github.com/eclipse/capella-sss-transition/wiki'>online version of the documentation</a>.</p>",
       "download": { 
-        "dropin": "https://download.eclipse.org/capella/addons/subsystemtransition/dropins/releases/1.5.0/SubsystemTransition-dropins-1.5.0.202012071627.zip", 
-        "updateSite": "https://download.eclipse.org/capella/addons/subsystemtransition/updates/releases/1.5.0/SubsystemTransition-updateSite-1.5.0.202012071627.zip",
+        "release": "https://github.com/eclipse/capella-sss-transition/releases/tag/v1.5.0", 
         "installAddon": "https://wiki.eclipse.org/Capella/Extensions/Installation_Guide#Installation_Procedures"
       }
     },
@@ -91,8 +91,7 @@
       "contact":"<a href='industry-consortium/thales.html' target='_blank'>Thales</a>",
       "description": "<p>Filtering is an addon to filter capella models. It provides several capabilities:</p><ul><li>Definition of filtering criteria to be associated with model elements</li><li>Definition of results containing criteria</li><li>Visualization of criteria and results in diagrams</li><li>Creation of filtered models</li></ul><p>For more information, please install the addon within Capella and check dedicated section for the addon in Help Content or access to the <a href='https://github.com/eclipse/capella-filtering/wiki'>online version of the documentation</a>.</p>",
       "download": { 
-        "dropin": "https://download.eclipse.org/capella/addons/filtering/dropins/releases/1.5.0/Filtering-dropins-1.5.0.202101131443.zip", 
-        "updateSite": "https://download.eclipse.org/capella/addons/filtering/updates/releases/1.5.0/Filtering-updateSite-1.5.0.202101131443.zip",
+        "release": "https://github.com/eclipse/capella-filtering/releases/tag/v1.5.0", 
         "installAddon": "https://wiki.eclipse.org/Capella/Extensions/Installation_Guide#Installation_Procedures"
       }
     }, 
@@ -253,8 +252,7 @@
        "contact":"<a href='industry-consortium/thales.html' target='_blank'>Thales</a>",
        "description": "<p>This add-on allows importing a set of requirements from a ReqIF file (Requirement Interchange Format / OMG Standard).</p><p>The import is iterative (diff/merge based) and a set of tools is provided to link the model elements to the requirements.</p><p>For more information, please install the addon within Capella and check online help then dedicated section for the addon.</p>",
        "download": { 
-        "dropin": "https://download.eclipse.org/capella/addons/requirements/dropins/releases/0.12.0/Requirements-dropins-0.12.0.202101221536.zip", 
-        "updateSite": "https://download.eclipse.org/capella/addons/requirements/updates/releases/0.12.0/Requirements-updateSite-0.12.0.202101221536.zip",
+        "release": "https://github.com/eclipse/capella-requirements-vp/releases/tag/v0.12.0", 
         "installAddon": "https://wiki.eclipse.org/Capella/Extensions/Installation_Guide#Installation_Procedures"
        },
        "tags":["requirements"]