diff --git a/README.md b/README.md
index 23a2577..e05acb5 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 Azure OpenAI Service Proxy. Convert OpenAI official API request to Azure OpenAI API request.
 
-![aoai-proxy.jpg](docs%2Fassets%2Fimages%2Faoai-proxy.jpg)
+![aoai-proxy.jpg](assets%2Fimages%2Faoai-proxy.jpg)
 
 ## Get Start
 
@@ -32,7 +32,7 @@ Azure Deployment Names: **Resource Management** > **Deployments**
 AZURE_OPENAI_MODEL_MAPPER: gpt-3.5-turbo=azure-gpt-35
 ````
 
-![Screenshot of the overview UI for an OpenAI Resource in the Azure portal with the endpoint & access keys location circled in red.](docs/assets/images/endpoint.png)
+![Screenshot of the overview UI for an OpenAI Resource in the Azure portal with the endpoint & access keys location circled in red.](assets/images/endpoint.png)
 
 API Key: This value can be found in the **Keys & Endpoint** section when examining your resource from the Azure portal. You can use either `KEY1` or `KEY2`. 
 
@@ -74,7 +74,7 @@ curl --location --request POST 'localhost:8080/v1/chat/completions' \
 
 ChatGPT Web: https://github.com/Chanzhaoyu/chatgpt-web
 
-![image-20230324163357406](docs/assets/images/image-20230324163357406.png)
+![chatgpt-web](assets/images/chatgpt-web.png)
 
 Envs:
 
diff --git a/docs/assets/images/aoai-proxy.jpg b/assets/images/aoai-proxy.jpg
similarity index 100%
rename from docs/assets/images/aoai-proxy.jpg
rename to assets/images/aoai-proxy.jpg
diff --git a/docs/assets/images/image-20230324163357406.png b/assets/images/chatgpt-web.png
similarity index 100%
rename from docs/assets/images/image-20230324163357406.png
rename to assets/images/chatgpt-web.png
diff --git a/docs/assets/images/endpoint.png b/assets/images/endpoint.png
similarity index 100%
rename from docs/assets/images/endpoint.png
rename to assets/images/endpoint.png
diff --git a/cmd/main.go b/cmd/main.go
index 249c186..87c6b89 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -2,13 +2,14 @@ package main
 
 import (
 	"context"
-	"github.com/gin-gonic/gin"
-	"github.com/pkg/errors"
 	"log"
 	"net/http"
 	"os"
 	"os/signal"
 	"syscall"
+
+	"github.com/gin-gonic/gin"
+	"github.com/pkg/errors"
 )
 
 func main() {
diff --git a/cmd/router.go b/cmd/router.go
index 727d99a..c34737f 100644
--- a/cmd/router.go
+++ b/cmd/router.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"github.com/gin-gonic/gin"
-	"github.com/stulzq/azure-openai-proxy/azure"
+	"github.com/stulzq/azure-openai-proxy/pkg/azure"
 )
 
 // registerRoute registers all routes
diff --git a/azure/init.go b/pkg/azure/init.go
similarity index 95%
rename from azure/init.go
rename to pkg/azure/init.go
index a414cb2..d15f8a5 100644
--- a/azure/init.go
+++ b/pkg/azure/init.go
@@ -1,13 +1,12 @@
 package azure
 
 import (
+	"github.com/stulzq/azure-openai-proxy/pkg/constant"
 	"log"
 	"net/url"
 	"os"
 	"regexp"
 	"strings"
-
-	"github.com/stulzq/azure-openai-proxy/constant"
 )
 
 const (
diff --git a/azure/proxy.go b/pkg/azure/proxy.go
similarity index 89%
rename from azure/proxy.go
rename to pkg/azure/proxy.go
index d0b74c7..2c2bf6b 100644
--- a/azure/proxy.go
+++ b/pkg/azure/proxy.go
@@ -3,9 +3,7 @@ package azure
 import (
 	"bytes"
 	"fmt"
-	"github.com/bytedance/sonic"
-	"github.com/pkg/errors"
-	"github.com/stulzq/azure-openai-proxy/util"
+	"github.com/stulzq/azure-openai-proxy/pkg/util"
 	"io"
 	"log"
 	"net/http"
@@ -13,12 +11,14 @@ import (
 	"path"
 	"strings"
 
+	"github.com/bytedance/sonic"
 	"github.com/gin-gonic/gin"
+	"github.com/pkg/errors"
 )
 
 // Proxy Azure OpenAI
 func Proxy(c *gin.Context) {
-	// improve performance some code from https://github.com/diemus/azure-openai-proxy/blob/main/pkg/azure/proxy.go
+	// some code from https://github.com/diemus/azure-openai-proxy/blob/main/pkg/azure/proxy.go
 	director := func(req *http.Request) {
 		if req.Body == nil {
 			util.SendError(c, errors.New("request body is empty"))
@@ -34,6 +34,7 @@ func Proxy(c *gin.Context) {
 			return
 		}
 
+		// get deployment from request
 		deployment, err := model.String()
 		if err != nil {
 			util.SendError(c, errors.Wrap(err, "get deployment error"))
@@ -64,7 +65,7 @@ func Proxy(c *gin.Context) {
 	proxy := &httputil.ReverseProxy{Director: director}
 	proxy.ServeHTTP(c.Writer, c.Request)
 
-	// https://github.com/Chanzhaoyu/chatgpt-web/issues/831
+	// issue: https://github.com/Chanzhaoyu/chatgpt-web/issues/831
 	if c.Writer.Header().Get("Content-Type") == "text/event-stream" {
 		if _, err := c.Writer.Write([]byte{'\n'}); err != nil {
 			log.Printf("rewrite response error: %v", err)
diff --git a/constant/env.go b/pkg/constant/env.go
similarity index 100%
rename from constant/env.go
rename to pkg/constant/env.go
diff --git a/util/response_err.go b/pkg/util/response_err.go
similarity index 100%
rename from util/response_err.go
rename to pkg/util/response_err.go
diff --git a/util/types.go b/pkg/util/types.go
similarity index 100%
rename from util/types.go
rename to pkg/util/types.go