add plugin fastgpt

plugins/fastgpt/README.md

@@ -0,0 +1,34 @@
+# FastGPT
+
+> FastGPT 是一个基于 LLM 大语言模型的知识库问答系统，提供开箱即用的数据处理、模型调用等能力。同时可以通过 Flow 可视化进行工作流编排，从而实现复杂的问答场景！
+
+## Schema
+[openapi.json](./openapi.json)
+
+## Servers
+
+`https://api.fastgpt.in`
+
+## Operations
+
+1. GetDatasetList
+> Get Dataset list with `id`, `name` and other info
+
+2. SearchFromDatasetById
+> search chunks from dataset by `datesetId`
+
+## Authentication
+
+type: bearer
+location: header
+
+## Context Prompts
+```
+please get `datasetId` which name is "NextChat README", and query context from this dataset, and then answer user's question.
+```
+
+## Preview
+
+![Preview](./preview.png)
+
+