fix book search basarat#264 (comment) 🌹

basarat · web-flow · commit 0981cd9a8c61 · 2017-09-11T10:39:53.000+10:00
diff --git a/book.json b/book.json
@@ -1,6 +1,9 @@
 {
   "plugins": ["edit-link", "github", "adsense"],
   "pluginsConfig": {
+    "lunr": {
+      "ignoreSpecialCharacters": true
+    },
     "edit-link": {
       "base": "https://github.com/basarat/typescript-book/tree/master",
       "label": "Edit This Page"
