rename web into demo

demo/static/libs/snabbdom/examples/carousel-svg/README.md

@@ -0,0 +1,19 @@
+This carousel example uses `style transform` and `transition` to rotate a group of SVG triangles.
+
+Also, the color of each triangle changes when you hover or click/tap it.
+
+I built the build.js using npm and browserify. 
+
+In my local copy of the snabbdom project root I did these preparations:
+```
+npm install --save-dev babelify
+npm install --save-dev babel-preset-es2015
+echo '{ "presets": ["es2015"] }' > .babelrc
+```
+
+I then built like this:
+```
+browserify examples/carousel-svg/script.js -t babelify -o examples/carousel-svg/build.js
+```
+
+-- *jk*