Upgrade version number to 1.3.0.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "how-to-cook",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "how-to-cook",
-      "version": "1.2.0",
+      "version": "1.3.0",
       "license": "Unlicense",
       "dependencies": {
         "textlint": "^12.1.0",

package.json

@@ -1,7 +1,7 @@
 {
   "name": "how-to-cook",
   "description": "程序员在家做饭方法指南。Programmer's guide about how to cook at home (Chinese).",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/Anduin2017/HowToCook.git"