docs: modify the TypeScript server demo

Author: fengshaokang

docs/quickstart/server.mdx

@@ -543,7 +543,7 @@ The tool execution handler is responsible for actually executing the logic of ea
 ```typescript
 // Register weather tools
 server.tool(
-  "get-alerts",
+  "get_alerts",
   "Get weather alerts for a state",
   {
     state: z.string().length(2).describe("Two-letter state code (e.g. CA, NY)"),
@@ -591,7 +591,7 @@ server.tool(
 );
 
 server.tool(
-  "get-forecast",
+  "get_forecast",
   "Get weather forecast for a location",
   {
     latitude: z.number().min(-90).max(90).describe("Latitude of the location"),