diff --git a/developer-guide/development/sig-observability/kubesphere-logging-devlopment-guide.md b/developer-guide/development/sig-observability/kubesphere-logging-devlopment-guide.md
index 20b14f4aa..aa8c6af56 100644
--- a/developer-guide/development/sig-observability/kubesphere-logging-devlopment-guide.md
+++ b/developer-guide/development/sig-observability/kubesphere-logging-devlopment-guide.md
@@ -1,60 +1,60 @@
 # Logging
 
-This documentation contains backend development guides for interaction with key components behind KubeSphere logging system. Logging backend provides the capabilities of:
- 
- - Log search
- - Log export
- - Log output configuration
- - Multi-tenant isolation
+This documentation contains backend development guide for interaction with key components behind KubeSphere logging system. Logging backend provides the capabilities of:
+
+- Log search
+- Log export
+- Log output configuration
+- Multi-tenant isolation
 
 ## File Tree
 
 The listing below covers all folders related to the logging backend.
 
-```
+```yaml
 /pkg
   ├─api
-  │  └─logging            # declares structs for api responses
-  │     └─v1alpha2             
-  ├─apiserver             # implements handler for http requests
-  │  ├─logging            
+  │  └─logging            # declare structs for api responses
+  │     └─v1alpha2
+  ├─apiserver             # implement handler for http requests
+  │  ├─logging
   │  └─tenant
-  ├─kapis                 # registers APIs and routing
+  ├─kapis                 # register APIs and routing
   │  ├─logging
   │  │  ├─install
   │  │  └─v1alpha2
   │  ├─tenant
   │  │  ├─install
   │  │  └─v1alpha2
-  ├─models                
+  ├─models
   │  ├─log                # constants, utils and fluent-bit crd operation
   │  │  ├─constants.go
   │  │  ├─logcollector.go # some utils
-  │  │  ├─logcrd.go       # interacts with fluent-bit crd
+  │  │  ├─logcrd.go       # interact with fluent-bit crd
   │  │  └─types.go
   │  └─tenant
   └─simple
-     ├─factory.go         # contains factory functions for es client options
+     ├─factory.go         # contain factory functions for es client options
      └─client
-        ├─elasticsearch   # wraps es search apis
-        │  ├─esclient.go  # constructs es search body 
-        │  ├─interface.go # general interface methods for es clients
-        │  ├─options.go   # es client options
-        │  └─versions     # client code by es versions
+        ├─elasticsearch   # wrap ES search apis
+        │  ├─esclient.go  # construct ES search body
+        │  ├─interface.go # general interface methods for ES clients
+        │  ├─options.go   # ES client options
+        │  └─versions     # client code by ES versions
         │     ├─v5
         │     ├─v6
         │     └─v7
-        └─fluentbit       # autogenerated client code for fluent-bit crd
+        └─fluentbit       # autogenerated client code for fluent-bit CRD
 ```
 
 ## API Design
 
-There are two types of APIs in logging. One for log query, and the other for interacting with the CustomResourceDefinition used by [Fluent-bit Operator](https://github.com/kubesphere/fluentbit-operator). For information about CRD and Fluent-bit Operator, please go to its own repo.
- 
+There are two types of APIs in logging, one for log query, and the other one for interacting with the CustomResourceDefinition used by [Fluent-bit Operator](https://github.com/kubesphere/fluentbit-operator). For information about CRD and Fluent-bit Operator, please go to its own repo.
+
 To support multi-tenant isolation, KubeSphere's logging query APIs have the format like below, though the underlying logic is using Elastic Search APIs:
   
-```
+```bash
 GET /namespaces/{namespace}/pods/{pod}/containers/{container}
 ```
 
-KubeSphere API gateway will decode the URL and conduct authorization. A person who doesn't belong to a namespace will be rejected to make a request.
+KubeSphere API gateway will decode the URL and conduct authorization. A person who doesn't belong to a namespace will be refused to make a request.