Fix typos and update API keys in README

README.md

@@ -83,7 +83,7 @@
 ### 🐜 Innovative Low-Footprint Deploy
 PicoClaw can be deployed on almost any Linux device!
 
-- $9.9 [LicheeRV-Nano](https://www.aliexpress.com/item/1005006519668532.html)  E(Ethernet) or W(WiFi6) version, for Minimal Home Assitant
+- $9.9 [LicheeRV-Nano](https://www.aliexpress.com/item/1005006519668532.html)  E(Ethernet) or W(WiFi6) version, for Minimal Home Assistant
 - $30~50 [NanoKVM](https://www.aliexpress.com/item/1005007369816019.html), or $100 [NanoKVM-Pro](https://www.aliexpress.com/item/1005010048471263.html) for Automated Server Maintenance
 - $50 [MaixCAM](https://www.aliexpress.com/item/1005008053333693.html) or $100 [MaixCAM2](https://www.kickstarter.com/projects/zepan/maixcam2-build-your-next-gen-4k-ai-camera) for Smart Monitoring
 
@@ -144,7 +144,7 @@ picoclaw onboard
   "providers": {
     "openrouter": {
       "api_key": "xxx",
-      "api_base": "https://open.bigmodel.cn/api/paas/v4"
+      "api_base": "https://openrouter.ai/api/v1"
     }
   },
   "tools": {
@@ -165,7 +165,7 @@ picoclaw onboard
 
 > **Note**: See `config.example.json` for a complete configuration template.
 
-**3. Chat**
+**4. Chat**
 
 ```bash
 picoclaw agent -m "What is 2+2?"
@@ -396,17 +396,17 @@ picoclaw agent -m "Hello"
   },
   "providers": {
     "openrouter": {
-      "apiKey": "sk-or-v1-xxx"
+      "api_key": "sk-or-v1-xxx"
     },
     "groq": {
-      "apiKey": "gsk_xxx"
+      "api_key": "gsk_xxx"
     }
   },
   "channels": {
     "telegram": {
       "enabled": true,
       "token": "123456:ABC...",
-      "allowFrom": ["123456789"]
+      "allow_from": ["123456789"]
     },
     "discord": {
       "enabled": true,
@@ -418,11 +418,11 @@ picoclaw agent -m "Hello"
     },
     "feishu": {
       "enabled": false,
-      "appId": "cli_xxx",
-      "appSecret": "xxx",
-      "encryptKey": "",
-      "verificationToken": "",
-      "allowFrom": []
+      "app_id": "cli_xxx",
+      "app_secret": "xxx",
+      "encrypt_key": "",
+      "verification_token": "",
+      "allow_from": []
     },
     "qq": {
       "enabled": false,
@@ -434,7 +434,7 @@ picoclaw agent -m "Hello"
   "tools": {
     "web": {
       "search": {
-        "apiKey": "BSA..."
+        "api_key": "BSA..."
       }
     }
   }