Adding rich snippets.

layouts/_default/app.html

@@ -204,5 +204,32 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
             {{ end }}
         </div>
         {{- partial "footer.html" . -}}
+        <script type="application/ld+json">
+        {
+            "@context": "https://schema.org",
+            "@type": "SoftwareApplication",
+            "name": "{{ .Title }}",
+            "description": "{{ .Page.Description }}.",
+            "datePublished": "2022-01-19T17:40:38.546226+00:00",
+            
+            "applicationCategory": "{{ $AppData.category }}",
+            
+            
+            "image": "{{ .Params.HeaderImage }}",
+            "operatingSystem": "linux",
+            "offers": {
+                "price": 0.00,
+                "priceCurrency": "EUR"
+            },
+            "author": {
+                "@type": "Person",
+                "name": "Ad5001", 
+                "url": "https://apps.ad5001.eu{{ .Permalink }}"
+                
+            },
+            "softwareVersion": "{{ $AppData.version }}",
+            "license": "{{ $AppData.spdx }}"
+        }
+        </script>
     </body>
 </html>