Added basic readme and travis config file

Author: rakshith-ravi

.travis.yml

@@ -0,0 +1,10 @@
+language: rust
+rust:
+  - stable
+  - beta
+  - nightly
+
+jobs:
+  allow_failures:
+    - rust: nightly
+cache: cargo

README.md

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+# Gotham Rust
+
+This is a library that provides you with helper methods for interfacing with the microservices framework, [gotham](https://github.com/bytesonus/gotham).
+
+## How to use:
+
+There is a lot of flexibility provided by the library, in terms of connection options and encoding protocol options. However, in order to use the library, none of that is required.
+
+In case you are planning to implement a custom connection option, you will find an example in `src/connection/unix_socket_connection.rs`.
+
+For all other basic needs, you can get away without worrying about any of that.
+
+### A piece of code is worth a thousand words
+
+```rust
+use async_std::task;
+use gotham::{models::Value, GothamModule};
+use std::{time::Duration, collections::HashMap};
+
+async fn main() {
+    let mut module = GothamModule::default(String::from("../path/to/gotham.sock"));
+    module
+        .initialize("module-name".to_string(), "1.0.0".to_string(), HashMap::new())
+        .await
+        .unwrap();
+    // The hashmap is used to mark dependencies
+    println!("Initialized!");
+    module
+        .declare_function("print_hello".to_string(), |args| {
+            println!("Hello");
+            Value::Null
+        })
+        .await
+        .unwrap();
+    module
+        .call_function("module2.print_hello_world".to_string(), HashMap::new())
+        .await
+        .unwrap();
+    // The HashMap::new() here marks the arguments passed to the function
+    loop {
+        task::sleep(Duration::from_millis(1000)).await;
+    }
+}
+```