+ Readme

Readme.md

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+# Sledilnik Screenshots
+
+Based on [SledilnikScreenshots](https://github.com/VesterDe/SledilnikScreenshots).
+
+Calling URL with appropriate query params will return `image/png` `base64` encoded.
+
+## Developing new screenshot
+
+Run `yarn` to install everything. You are now ready.
+
+Add your new screenshot settings into an appropriate key inside screenshots.js.
+
+In `test.js` set `query` variable to match your screenshot.
+
+Running `node test.js` should make your screenshot on your local machine.
+
+If you want to observe what is going on, set variable `headless` to `false`.
+
+## Deploying
+
+Just push to master, the code will be live about 60 seconds after that.