Update Algolia config (#1175)

* initial config update

* add table indexing

Author: stb13579

.algolia/docsearch.config.json

@@ -6,33 +6,31 @@
     }
   ],
   "selectors": {
-    "default": {
-      "lvl0": {
-        "selector": "(//*[contains(@class, 'sidebar-heading open')])[1]",
-        "type": "xpath",
-        "global": true
-      },
-      "lvl1": {
-        "selector": "//h1/text()",
-        "type": "xpath",
-        "global": true
-      },
-      "lvl2": {
-        "selector": "/html/head/meta[@name='description']/@content",
-        "type": "xpath",
-        "global": true
-      },
-      "lvl3": {
-        "selector": "//h2/text()",
-        "type": "xpath",
-        "global": true
-      },
-      "text": ".content__default p, .content__default ul>li a, .content__default ul>li code",
-      "lang": {
-        "selector": "/html/@lang",
-        "type": "xpath",
-        "global": true
-      }
+    "lvl0": {
+      "selector": "(//*[contains(@class, 'sidebar-heading open')])[1]",
+      "type": "xpath",
+      "global": true
+    },
+    "lvl1": {
+      "selector": "//h1/text()",
+      "type": "xpath",
+      "global": true
+    },
+    "lvl2": {
+      "selector": "/html/head/meta[@name='description']/@content",
+      "type": "xpath",
+      "global": true
+    },
+    "lvl4": {
+      "selector": "//h2/text()",
+      "type": "xpath",
+      "global": true
+    },
+    "text": ".content__default p, .content__default ul>li a, .content__default ul>li code, .content__default table > tr, th, td, p, code",
+    "lang": {
+      "selector": "/html/@lang",
+      "type": "xpath",
+      "global": true
     }
   },
   "strip_chars": " .,;:#",