Added docker building.

README.md

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+<div align="center">
+  <img src="./logo.png" width="300">
+  <h1 align="center">
+    Automated telegram account
+  </h1>
+</div>
+
+This project is an attempt to add some utillities to your account.
+
+This app uses telegram API and connects to it as a user, not as a bot. To use it, you need to register a new application, and obtain `api hash token` and `application id` from official telegram website. You can do it [here](https://core.telegram.org/api/obtaining_api_id).
+
+
+## How to
+
+First of all, you need to install [Rust](http://rust-lang.org/). Personally I recommend to use [rustup](https://rustup.rs/).
+
+Make sure everything is fine by running `cargo --version`.
+
+1. Compile the app.
+    ```bash
+    cargo build --release
+    ```
+    After that command you'll find a compiled binary in `target/release/s3bot`.
+
+2. Run the compiled binary.
+
+
+## Configuration
+
+You can configure this app by either command line arguments or with environment variables.
+
+If you place .env file in current working directory, contents will be loaded as environment variables.
+
+For additional help please use:
+
+```bash
+s3bot --help
+```