diff --git "a/5 NGINX\346\225\217\346\215\267\351\205\215\347\275\256/README.md" "b/5 NGINX\346\225\217\346\215\267\351\205\215\347\275\256/README.md"
index 5484746f56e4ff4d0f16e7d14379ceab8d4a6767..0d9012af8457a63142e4be51feb100b4e74d3f4c 100644
--- "a/5 NGINX\346\225\217\346\215\267\351\205\215\347\275\256/README.md"	
+++ "b/5 NGINX\346\225\217\346\215\267\351\205\215\347\275\256/README.md"	
@@ -32,13 +32,13 @@ NGINX安装目录为/etc/nginx/，所有实验配置文件均保存在/etc/nginx
 2. 访问http://variable.will.com:8080/noset 和 http://variable.will.com:8080/set ，观察返回的页面信息。
 
 3. 删除 *variable.conf* 中第4行的注释符 
-    ```
+    ```conf
     set $f5 "is the best ADC!";
     ``` 
    重复第1、2步。
 
 4. 在 *variable.conf* 中第11行增加注释符
-    ```
+    ```conf
     #set $f5 "NGINX is a part of F5";
     ```
    重复第1步。
diff --git a/8 NGINX-Ingress-Controller/9-app-protect/README.md b/8 NGINX-Ingress-Controller/9-app-protect/README.md
index a79e34aff5ed19de31887ebe8f25f6abdeeccdd1..427e7a7f8e75b4d74476639ace5683aa7147f6aa 100644
--- a/8 NGINX-Ingress-Controller/9-app-protect/README.md	
+++ b/8 NGINX-Ingress-Controller/9-app-protect/README.md	
@@ -51,7 +51,7 @@ $ kubectl apply -f vs-waf.yaml
     ```
     kubectl exec -it ’syslog-pod-name‘ -- tail /var/log/messages | grep ’suppor ID‘
     ```
-    其中*s’yslog-pod-name‘*替换为syslog pod的name，*’support ID‘*替换为刚才复制的support ID。
+    其中*syslog-pod-name*替换为syslog pod的name，*support ID*替换为刚才复制的support ID。
 
 ## Step 8 - 还原实验环境
 
diff --git a/8 NGINX-Ingress-Controller/deployment/nginx-plus-ingress-hostnetwork.yaml b/8 NGINX-Ingress-Controller/deployment/nginx-plus-ingress-hostnetwork.yaml
deleted file mode 100644
index 365097d87d45370c4812ea371d2f684ac778388b..0000000000000000000000000000000000000000
--- a/8 NGINX-Ingress-Controller/deployment/nginx-plus-ingress-hostnetwork.yaml	
+++ /dev/null
@@ -1,75 +0,0 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: nginx-ingress
-  namespace: nginx-ingress
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: nginx-ingress
-  template:
-    metadata:
-      labels:
-        app: nginx-ingress
-     #annotations:
-       #prometheus.io/scrape: "true"
-       #prometheus.io/port: "9113"
-       #prometheus.io/scheme: http
-    spec:
-      serviceAccountName: nginx-ingress
-      hostNetwork: true
-      nodeSelector:
-        name: master
-      containers:
-      - image: docker-registry.nginx.com/nginx-ic-nap/nginx-plus-ingress:1.12.0
-        imagePullPolicy: Never
-        name: nginx-plus-ingress
-        ports:
-        - name: http
-          containerPort: 80
-        - name: https
-          containerPort: 443
-        - name: readiness-port
-          containerPort: 8081
-        - name: dashboard
-          containerPort: 8080
-        #- name: prometheus
-        #  containerPort: 9113
-        readinessProbe:
-          httpGet:
-            path: /nginx-ready
-            port: readiness-port
-          periodSeconds: 1
-        securityContext:
-          allowPrivilegeEscalation: true
-          runAsUser: 101 #nginx
-          capabilities:
-            drop:
-            - ALL
-            add:
-            - NET_BIND_SERVICE
-        env:
-        - name: POD_NAMESPACE
-          valueFrom:
-            fieldRef:
-              fieldPath: metadata.namespace
-        - name: POD_NAME
-          valueFrom:
-            fieldRef:
-              fieldPath: metadata.name
-        args:
-          - -nginx-plus
-          - -nginx-configmaps=$(POD_NAMESPACE)/nginx-config
-          - -default-server-tls-secret=$(POD_NAMESPACE)/default-server-secret
-          - -enable-app-protect
-         #- -v=3 # Enables extensive logging. Useful for troubleshooting.
-          - -report-ingress-status
-         #- -external-service=nginx-ingress
-         #- -enable-prometheus-metrics
-          - -global-configuration=$(POD_NAMESPACE)/nginx-configuration
-          - -ingress-class=nginx-plus
-          - -enable-tls-passthrough
-          - -nginx-status-allow-cidrs=10.1.10.0/24
-          - -enable-preview-policies
-          - -health-status
\ No newline at end of file