diff --git a/.editorconfig b/.editorconfig
index 701b070..24fe3d2 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -12,7 +12,7 @@ insert_final_newline = true
indent_style = space
indent_size = 2
-[{*.html,*.css,*.json}]
+[{*.html,*.css,*.json,*.webmanifest}]
indent_style = tab
indent_size = 4
@@ -20,6 +20,10 @@ indent_size = 4
indent_style = space
indent_size = 2
+[*.webmanifest]
+indent_style = space
+indent_size = 4
+
[*.md]
trim_trailing_whitespace = false
diff --git a/README.md b/README.md
index 1eb6ba2..23f22a2 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+
+
## Build `ENGINE`
```sh
diff --git a/src/favicon.ico b/src/favicon.ico
new file mode 100644
index 0000000..045a3c9
Binary files /dev/null and b/src/favicon.ico differ
diff --git a/src/icons/android-chrome-192x192.png b/src/icons/android-chrome-192x192.png
new file mode 100644
index 0000000..3053b95
Binary files /dev/null and b/src/icons/android-chrome-192x192.png differ
diff --git a/src/icons/android-chrome-512x512.png b/src/icons/android-chrome-512x512.png
new file mode 100644
index 0000000..d8fe3e8
Binary files /dev/null and b/src/icons/android-chrome-512x512.png differ
diff --git a/src/icons/apple-touch-icon.png b/src/icons/apple-touch-icon.png
new file mode 100644
index 0000000..e6ec71c
Binary files /dev/null and b/src/icons/apple-touch-icon.png differ
diff --git a/src/icons/favicon-16x16.png b/src/icons/favicon-16x16.png
new file mode 100644
index 0000000..3ad9768
Binary files /dev/null and b/src/icons/favicon-16x16.png differ
diff --git a/src/icons/favicon-32x32.png b/src/icons/favicon-32x32.png
new file mode 100644
index 0000000..6e950fb
Binary files /dev/null and b/src/icons/favicon-32x32.png differ
diff --git a/src/index.html b/src/index.html
index 285f47d..9570615 100644
--- a/src/index.html
+++ b/src/index.html
@@ -5,6 +5,10 @@
ujs
+
+
+
+
diff --git a/src/site.webmanifest b/src/site.webmanifest
new file mode 100644
index 0000000..d17b996
--- /dev/null
+++ b/src/site.webmanifest
@@ -0,0 +1,11 @@
+{
+ "name": "",
+ "short_name": "",
+ "icons": [
+ { "src": "/icons/android-chrome-192x192.png", "sizes": "192x192", "type": "image/png" },
+ { "src": "/icons/android-chrome-512x512.png", "sizes": "512x512", "type": "image/png" }
+ ],
+ "theme_color": "#ffffff",
+ "background_color": "#ffffff",
+ "display": "standalone"
+}