chore: upgrade dependencies & update upgrade doc

package.json

@@ -3,26 +3,24 @@
   "version": "0.0.0",
   "private": true,
   "hexo": {
-    "version": "6.3.0"
+    "version": "7.1.1"
   },
   "dependencies": {
     "bulma-stylus": "0.8.0",
-    "hexo": "^6.0.0",
-    "hexo-algolia": "^1.3.1",
-    "hexo-deployer-git": "^3.0.0",
-    "hexo-filter-github-emojis": "^3.0.4",
-    "hexo-generator-archive": "^1.0.0",
+    "hexo": "^7.1.1",
+    "hexo-algolia": "^1.3.2",
+    "hexo-deployer-git": "^4.0.0",
+    "hexo-filter-github-emojis": "^3.0.5",
+    "hexo-generator-archive": "^2.0.0",
     "hexo-generator-feed": "^3.0.0",
-    "hexo-generator-index": "^2.0.0",
-    "hexo-generator-tag": "^1.0.0",
-    "hexo-pagination": "^2.0.0",
-    "hexo-renderer-inferno": "^0.1.3",
-    "hexo-renderer-marked": "^4.0.0",
-    "hexo-renderer-stylus": "^2.0.0",
+    "hexo-generator-index": "^3.0.0",
+    "hexo-generator-tag": "^2.0.0",
+    "hexo-pagination": "^3.0.0",
+    "hexo-renderer-inferno": "^1.0.2",
+    "hexo-renderer-marked": "^6.2.0",
+    "hexo-renderer-stylus": "^3.0.1",
     "hexo-server": "^3.0.0",
-    "hexo-theme-icarus": "^5.2.1"
-  },
-  "resolutions": {
-    "stylus": "^0.54.8"
+    "hexo-tag-embed": "^1.0.0",
+    "hexo-theme-icarus": "^6.0.0"
   }
-}
+}

source/_posts/en/Upgrade-Guide.md

@@ -15,6 +15,22 @@ toc: true
 
 <!-- more -->
 
+### Upgrading from 5.x to 6.0
+
+1. Upgrade Node.js to 14.0 or a newer version.
+
+2. Install Icarus 6.x either via source code dowload or NPM install.
+   You can find instructions in {% post_link en/Getting-Started %}.
+   If you plan to customize the theme by altering its source code, you are required to install
+   the theme from source code.
+
+3. Run `hexo clean` to clear cache files and let Icarus upgrade your theme configuration file for
+   you.
+
+4. Check out the [release notes](https://github.com/ppoffice/hexo-theme-icarus/releases) and the
+   [latest documentation](https://ppoffice.github.io/hexo-theme-icarus/categories/) for more
+   information of the new features.
+
 ### Upgrading from 4.x to 5.0
 
 1. Upgrade Node.js to 12.4.0 or a newer version.

source/_posts/zh-CN/Upgrade-Guide.md

@@ -19,6 +19,18 @@ toc: true
 
 <!-- more -->
 
+### 从5.x升级至6.x
+
+1. 将Node.js升级到14.0或者更新的版本。
+
+2. 下载源代码或者从NPM安装Icarus 6.x。
+   你可以在{% post_link zh-CN/Getting-Started %}中找到安装指导。
+   如果你打算通过修改源代码的方式自定义主题，你必须从源代码安装主题。
+
+3. 运行`hexo clean`来清理缓存并让Icarus为你升级主题配置文件。
+
+4. 阅读[更新说明](https://github.com/ppoffice/hexo-theme-icarus/releases)和[最新文档](https://ppoffice.github.io/hexo-theme-icarus/categories/)来了解更多新功能的信息。
+
 ### 从4.x升级至5.x
 
 1. 将Node.js升级到12.4.0或者更新的版本。