Write proper README

README.md

@@ -1,2 +1,56 @@
-# libra-sdk-go
+libra-sdk-go
+============
+
 Go SDK for the Libra cryptocurrency
+
+> Note: This is work in progress! The API is not stable and will definitely change in the future!
+
+Features
+--------
+
+- Get account state (raw bytes)
+- Send transaction (raw bytes)
+
+### Roadmap
+
+- Instead of returning the undecoded bytes, a proper account state object will be returned in the future
+- Instead of the current `Transaction` struct that only takes `RawBytes`, a higher level transaction struct will be added with fields for the sender and receiver address as well as amount of Libra Coins to send.
+- A wallet package will be added that can read a recovery file or take a recovery seed string and create accounts with their public/private keypairs from that
+- And much more...
+
+Usage
+-----
+
+Example:
+
+```go
+package main
+
+import (
+    "fmt"
+    "time"
+
+    libra "github.com/philippgille/libra-sdk-go"
+)
+
+func main() {
+    c, err := libra.NewClient("ac.testnet.libra.org:8000", time.Second)
+    if err != nil {
+        panic(err)
+    }
+    defer c.Close()
+
+    accState, err := c.GetAccountState("8cd377191fe0ef113455c8e8d769f0c0147d5bb618bf195c0af31a05fbfd0969")
+    if err != nil {
+        panic(err)
+    }
+
+    fmt.Printf("Account state: 0x%x", accState)
+}
+```
+
+Currently prints:
+
+```
+Account state: 0x010000002100000001217da6c6b3e19f1825cfb2676daecce3bf3de03cf26647c78df00b371b25cc9744000000200000008cd377191fe0ef113455c8e8d769f0c0147d5bb618bf195c0af31a05fbfd0969a0acb90300000000010000000000000004000000000000000400000000000000
+```