Kv alidocs (#3122)

* adding Alibaba docs to menu

* Adjusting code blog styling

* Rearrange menu items

docs/backends/BCS.md

@@ -137,24 +137,24 @@ There are two different ways of specifying an Alibaba Cloud BatchCompute cluster
 
 - Reserved cluster - A pre-created cluster ID in BatchCompute service like this:
 
-  ```hocon
+```hocon
       default-runtime-attributes {
         cluster: "cls-your-cluster-id"
       }
-  ```
+```
 
 - Auto cluster - Cluster configuration to create a new runtime cluster bound to the workflow job:
 
   - `<resource-type>` - Type of resource, can only support `OnDemand` and `Spot` currently.
   - `<instance-type>` - Type of VM instance. Go to <a href="https://help.aliyun.com/document_detail/25378.html" target="_blank">Alibaba Cloud BatchCompute Instance Type</a> to choose a suitable type for you.
   - `<image-id>` - Image ID of Alibaba Cloud BatchCompute service to create a VM.
 
-  ```hocon
+```hocon
       default-runtime-attributes {
         cluster: "<resource-type> <instance-type> <image-id>"
         # Maybe like cluster: "OnDemand ecs.sn1ne.large img-ubuntu"
       }
-  ```
+```
 
 #### mounts
 

mkdocs.yml

@@ -12,6 +12,7 @@ pages:
     - Quick Introduction: tutorials/FiveMinuteIntro.md
     - How to Configure Cromwell: tutorials/ConfigurationFiles.md
     - Getting started with Pipelines API: tutorials/PipelinesApi101.md
+    - Getting started with Alibaba Cloud: tutorials/BCSIntro.md
     - View the Timing Diagrams: tutorials/TimingDiagrams.md
     - Persisting data between restarts: tutorials/PersistentServer.md
     - Getting started on HPC Clusters: tutorials/HPCIntro.md
@@ -43,6 +44,7 @@ pages:
     - Overview: backends/Backends.md
     - Local: backends/Local.md
     - Google Cloud: backends/Google.md
+    - Alibaba Cloud: backends/BCS.md
     - GA4GH TES: backends/TES.md
     - Spark: backends/Spark.md
     - HPC: backends/HPC.md