Adds new architecture diagram and update copy (#152)

* Adds new architecture diagram and updates copy

Author: Conor Okus

docs/.vuepress/config.js

@@ -25,7 +25,7 @@ const docsSidebar = [
         title: 'Overview',
         collapsable: true,
         children: [
-          ['/overview/architecture', 'LDK Architecture'],
+          ['/overview/architecture', 'Architecture'],
           ['/overview/persistent_storage', 'Persistent Storage'],
           ['/overview/blockchain_data', 'Blockchain Data'],
           ['/overview/wallet_management', 'Wallet Management'],
@@ -184,7 +184,7 @@ module.exports = {
               link: '/running-a-sample-ldk-node/'
             },
             {
-              text: 'LDK Architecture',
+              text: 'Architecture',
               link: '/overview/architecture/'
             },
             {

docs/assets/ldk-architecture.svg

@@ -29,7 +29,7 @@ provide a useful overview of Rust Lightning in the context of language bindings.
 The sample serves as a complete reference for constructing a Lightning node with
 the LDK. This is a good starting point if you want a self-guided tour!
 
-### [LDK Architecture](../overview/architecture)
+### [Architecture](../overview/architecture)
 
 Gives a high-level organization of LDK and how the pieces fit together. Variations of this diagram
 are used throughout the site. This is the primary source and is still a work in progress.

docs/introduction/index.md

@@ -1,10 +1,12 @@
-## LDK Architecture
-![LDK Architecture](../assets/ldk-architecture.svg)
+# Architecture
+![Architecture](../assets/ldk-architecture.svg)
 
-LDK's core components are shown in the center box labeled `lightning`. The boxes
-with dotted borders are LDK's modules — these must be configured with either
-off-the-shelf or custom implementations that you provide.
+Firstly, LDK is not a daemon, but rather its own implementation of the Lightning protocol written as an SDK and designed to be compiled and executed in your application. 
 
-`EventHandler` in the diagram is not so much a necessary LDK module, but instead
-refers to the fact that LDK generates events that the user should handle (e.g.
-the `PaymentReceived` event).
+This makes it environment agnostic, allowing you to choose your own data storage, wallet, networking stack and blockchain monitoring. In the diagram above the boxes with dotted borders are LDK's modules — these must be configured with either default or custom implementations that you provide.
+
+LDK also uses an event-driven architecture which allows for asynchronous result notification. For example you perform actions like making payments without waiting for the result and are later made aware via an event if the payment was successful or not.
+
+::: tip Langauge Bindings
+
+Although the core SDK is written in Rust, LDK supports many other programming languages. These include Java/Kotlin, Swift, JavaScript/TypeScript (Beta), C++ (Alpha). Check out [examples](../examples.md) to see some of the implementations out in the wild!