Update rss_feeds.json

rss_feeds.json

@@ -1,5 +1,13 @@
 {
   "Academic & Science": [
+    { "name": "arXiv CS", "url": "https://arxiv.org/rss/cs" },
+    { "name": "arXiv Physics", "url": "https://arxiv.org/rss/physics" },
+    { "name": "arXiv Math", "url": "https://arxiv.org/rss/math" },
+    { "name": "arXiv Astrophysics", "url": "https://arxiv.org/rss/astro-ph" },
+    { "name": "arXiv Biology", "url": "https://arxiv.org/rss/biology" },
+    { "name": "arXiv Economics", "url": "https://arxiv.org/rss/econ" },
+    { "name": "arXiv Statistics", "url": "https://arxiv.org/rss/stat" },
+    { "name": "arXiv Quantum Physics", "url": "https://arxiv.org/rss/quant-ph" },
     { "name": "Nature", "url": "https://www.nature.com/nature.rss" },
     { "name": "Science", "url": "https://www.science.org/action/showFeed?type=etoc&feed=rss" },
     { "name": "Quanta Magazine", "url": "https://www.quantamagazine.org/feed/" },