added David Brown and sterlingimages

blogs2.json

@@ -629,5 +629,14 @@
         "title": "Flagstaff Altitudes",
         "url": "https://www.dblanchard.net/blog/",
         "feed": "https://www.dblanchard.net/blog/feed/"
+    },
+    {
+        "title": "David Brown - Photographer",
+        "url": "https://silverdarkroom.net/"
+    },
+    {
+        "title": "light, shadow, form, and texture",
+        "url": "https://sterlingimages.com",
+        "feed": "https://sterlingimages.com/feed/"
     }
 ]