Update solr-exposure.yaml

I'm sorry for the last incomplete commit. Later on I realized an extractor could be added. 

``nuclei -t exposed-panels/solr-exposure.yaml -u http://116.198.24.133/``

exposed-panels/solr-exposure.yaml

@@ -5,12 +5,24 @@ info:
   author: pdteam
   severity: medium
   tags: panel,solr
+  metadata:
+    shodan-query: https://www.shodan.io/search?query=http.title%3A%22Solr+Admin%22
 
 requests:
   - method: GET
     path:
       - '{{BaseURL}}/solr/'
+      - '{{BaseURL}}/'
+ 
+    stop-at-first-match: true
     matchers:
       - type: word
+        name: title
         words:
           - "<title>Solr Admin</title>"
+    extractors:
+      - type: regex
+        part: body
+        group: 1
+        regex:
+          - 'favicon\.ico\?_=([0-9.]+)'