add astria-evm to docs (#24)

## Description
<!-- Describe your changes in detail -->
Adds a section to the docs for the Astria EVM on dusk-2

## Motivation and Context
<!-- Why is this change required? What problem does it solve? -->
<!-- If it fixes an open issue, please link to the issue here. -->

## Screenshots (if appropriate):
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## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [x] Edits to existing documentation
- [x] Changing documentation structure (relocating existing files,
ensure redirects exist)
- [ ] Stylistic changes (provide screenshots above)

docs/astria-evm/1-overview.md

@@ -0,0 +1,49 @@
+---
+sidebar_position: 1
+---
+
+# Astria EVM
+
+## Network Information
+
+| Property | Value |
+|-----|-----|
+| Network Name | dusk-2 |
+| RPC URL | <https://rpc.evm.dusk-2.devnet.astria.org> |
+| Chain ID | 912559 |
+| Currency Symbol | RIA |
+| Dora | <https://www.ondora.xyz/network/astria-devnet> |
+| Faucet | <https://faucet.evm.dusk-2.devnet.astria.org> |
+| Block Scout | <https://explorer.evm.dusk-2.devnet.astria.org/> |
+
+## Adding to Metamask
+
+Follow Metamask's official documentation to [manually add a custom network.](https://support.metamask.io/hc/en-us/articles/360043227612-How-to-add-a-custom-network-RPC#h_01G63GGJ83DGDRCS2ZWXM37CV5)
+
+Your settings should look like the image below
+
+![Metamask](assets/metamask-dusk2.png)
+
+## Using Cast
+
+Set your `ETH_RPC_URL`:
+
+```bash
+export ETH_RPC_URL=https://rpc-archive.evm.dusk-2.devnet.astria.org/
+```
+
+```bash
+export REC_ADDR=<SOME_ADDRESS>
+```
+
+```bash
+cast balance $REC_ADDR
+```
+
+```bash
+cast send $REC_ADDR --value 10000000000000000000 --private-key <PRIVATE-KEY>
+```
+
+```bash
+cast balance $REC_ADDR
+```

docs/astria-evm/_category_.json

@@ -0,0 +1,8 @@
+{
+  "label": "The Astria EVM",
+  "position": 4,
+  "link": {
+    "type": "doc",
+    "id": "astria-evm/overview"
+  }
+}