add mcp descriptions (#2080)

plugins/wasm-go/mcp-servers/mcp-firecrawl/README.md

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+# Firecrawl MCP Server
+
+An implementation of the Model Context Protocol (MCP) server that integrates [Firecrawl](https://github.com/mendableai/firecrawl), providing web scraping capabilities.
+
+## Features
+
+- Supports scraping, crawling, searching, extracting, deep research, and batch scraping
+- Supports JavaScript-rendered web page scraping
+- URL discovery and crawling
+- Web search and content extraction
+- Scraping result transformation
+
+## Usage Guide
+
+### Get API-KEY
+1. Register for a Firecrawl account [Visit official website](https://www.firecrawl.dev/app)
+2. Generate API Key through developer console [Go to console](https://www.firecrawl.dev/app/api-keys)
+
+### Generate SSE URL
+
+On the MCP Server interface, log in and enter the API-KEY to generate the URL.
+
+### Configure MCP Client
+
+On the user's MCP Client interface, add the generated SSE URL to the MCP Server list.
+
+```json
+"mcpServers": {
+    "firecrawl": {
+      "url": "http://mcp.higress.ai/mcp-firecrawl/{generate_key}",
+    }
+}
+```