Merge pull request #28 from rayzhou2017/master

Re-org file structure

developer-guide/concepts-and-designs/README.md

@@ -8,19 +8,19 @@ Concepts and Designs help you to learn and understand the KubeSphere and the lan
 
 ## DevOps
 
-- [KubeSphere DevOps Pipeline Overview](sig-devops/devops-pipeline-overview.md): explains the architecture and key components of KubeSphere pipeline.
-- [KubeSphere S2I and B2I overview](sig-devops/s2i_b2i_overview.md): explains the workflow and principle of KubeSphere S2I (Source-to-Image) and B2I (Binary-to-Image).
+- [KubeSphere DevOps Pipeline Overview](../../sig-devops/concepts-and-designs/devops-pipeline-overview.md): explains the architecture and key components of KubeSphere pipeline.
+- [KubeSphere S2I and B2I overview](../../sig-devops/concepts-and-designs/s2i-b2i-overview.md): explains the workflow and principle of KubeSphere S2I (Source-to-Image) and B2I (Binary-to-Image).
 
 ## Observability
 
 ### KubeSphere Monitoring
 
-- [Overview](sig-observability/kubesphere-monitoring.md#Overview): explains the architecture and key components behind the monitoring system.
-- [Setup](sig-observability/kubesphere-monitoring.md#Setup): introduces manifests related to Prometheus setup.
+- [Overview](../../sig-observability/concepts-and-designs/kubesphere-monitoring.md#Overview): explains the architecture and key components behind the monitoring system.
+- [Setup](../../sig-observability/concepts-and-designs/kubesphere-monitoring.md#Setup): introduces manifests related to Prometheus setup.
 
 ### KubeSphere Logging
 
-- [Overview](sig-observability/kubesphere-logging.md#Overview): explains the architecture and key components behind the logging system.
-- [Log Collection and Forward](sig-observability/kubesphere-logging.md#Log-Collection-and-Forward): introduces logging agent and the sidecar-based solution for collecting application logs on disk.
-- [Log Store and Management](sig-observability/kubesphere-logging.md#Log-Store-and-Management): introduces long-term log storage and management.
-- [Log Search, Export and Visualization](sig-observability/kubesphere-logging.md#Log-Search,-Export-and-Visualization): introduces log query and reporting.
+- [Overview](../../sig-observability/concepts-and-designs/kubesphere-logging.md#Overview): explains the architecture and key components behind the logging system.
+- [Log Collection and Forward](../../sig-observability/concepts-and-designs/kubesphere-logging.md#Log-Collection-and-Forward): introduces logging agent and the sidecar-based solution for collecting application logs on disk.
+- [Log Store and Management](../../sig-observability/concepts-and-designs/kubesphere-logging.md#Log-Store-and-Management): introduces long-term log storage and management.
+- [Log Search, Export and Visualization](../../sig-observability/concepts-and-designs/kubesphere-logging.md#Log-Search,-Export-and-Visualization): introduces log query and reporting.