Add stake and unstake commands to Shardeum CLI

.github/workflows/validate-cli.yml

@@ -0,0 +1,43 @@
+
+name: Validate CLI Build
+
+on:
+  push:
+    branches: [ dev ]
+  pull_request:
+    branches: [ dev ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x, 20.x]
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install dependencies
+      run: npm ci
+
+    - name: Build
+      run: npm run build
+
+    - name: Link package
+      run: sudo npm link
+
+    - name: Validate CLI help command
+      run: |
+        # Verify both ways of running the CLI work
+        shardeum-cli --help
+        npm start -- --help
+
+    - name: Test set rpc
+      run: |
+        shardeum-cli config:set-rpc https://sphinx.shardeum.org

README.md

@@ -1,7 +1,21 @@
 # shardeum-cli
 
 A command line utility to query Shardeum's functions and send transactions
+## Installation
 
+```bash
+# Build from source
+npm run build
+npm start
+# run with 
+npm start <command>
+
+# Or install globally
+npm run build
+npm link
+# run with
+shardeum-cli <command>
+```
 ```
 Usage: index [options] [command]
 
@@ -28,6 +42,8 @@ Commands:
   eth:protocolVersion                        Get Ethereum protocol version
   eth:sendTransaction [options]              Send a transaction
   test:network [options]                     Run network test
+  shm:stake [options]                        Stake SHM tokens
+  shm:unstake [options]                      Unstake SHM tokens
   help [command]                             display help for command
 
 ```