Add book schema (#146)

schemas/book.js

@@ -0,0 +1,26 @@
+import {defineType, defineField} from 'sanity'
+
+export const book = defineType({
+  title: "Books",
+  name: "book",
+  type: "document",
+  fields: [
+    defineField({
+      title: "Title",
+      name: "title",
+      type: "string"
+    }),
+    defineField({
+      title: "Link",
+      name: "link",
+      type: "url"
+    }),
+    defineField({
+    title: "Date",
+    name: "date",
+    type: "date"
+    }),
+  ]
+})
+
+export default book;

schemas/index.js

@@ -4,5 +4,6 @@ import course from './course'
 import provider from './provider'
 import person from './person'
 import collection from './collection'
+import book from './book'
 
-export const schemaTypes = [event, course, provider, person, collection]
+export const schemaTypes = [event, course, provider, person, collection, book]