Adjust docs for wasm functions (#328)

Signed-off-by: Benjamin Huo <benjamin@kubesphere.io>

Author: benjaminhuo

content/en/docs/concepts/cicd.md

@@ -1,7 +1,7 @@
 ---
-title: "CICD"
-linkTitle: "CICD"
-weight: 4600 
+title: "CI/CD"
+linkTitle: "CI/CD"
+weight: 3500 
 description:
 ---
 

content/en/docs/concepts/serverless_apps.md

@@ -1,7 +1,7 @@
 ---
 title: "Serverless Applications"
 linkTitle: "Serverless Applications"
-weight: 3310
+weight: 3330
 description: 
 ---
 In addition to building and running Serverless Functions, you can also build and run Serverless Applications with OpenFuntion. 

…en/docs/concepts/wasmedge_integration.md …ntent/en/docs/concepts/wasm_functions.mdcontent/en/docs/concepts/wasmedge_integration.md renamed to content/en/docs/concepts/wasm_functions.md content/en/docs/concepts/wasmedge_integration.md renamed to content/en/docs/concepts/wasm_functions.md

@@ -1,30 +1,32 @@
 ---
-title: "WasmEdge Integration"
-linkTitle: "WasmEdge Integration"
-weight: 3380
+title: "Wasm Functions"
+linkTitle: "Wasm Functions"
+weight: 3310
 description:
 ---
 
-## WasmEdge Integration
-
 `WasmEdge` is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.
 
 OpenFunction now supports building and running wasm functions with `WasmEdge` as the workload runtime.
 
 > You can find the WasmEdge Integration proposal [here](https://github.com/OpenFunction/OpenFunction/blob/main/docs/proposals/20230223-wasmedge-integration.md)
 
-### Function Build
+## Wasm container images
+
+The wasm image containing the wasm binary is a special container image without the OS layer. An special annotation `module.wasm.image/variant: compat-smart` should be added to this wasm container image for a wasm runtime like WasmEdge to recognize it. This is handled automatically in OpenFunction and users only need to specify the `workloadRuntime` as `wasmedge`. 
+
+### The build phase of the wasm container images 
 
-When the value of the `spec.workloadRuntime` field is `wasmedge` or the annotations of the Function CR contains `module.wasm.image/variant: compat-smart`, 
-`spec.build.shipwright.strategy` will be automatically generated based on the `ClusterBuildStrategy` named `wasmedge`.
+If `function.spec.workloadRuntime` is set to `wasmedge` or the function's annotation contains `module.wasm.image/variant: compat-smart`, 
+`function.spec.build.shipwright.strategy` will be automatically generated based on the `ClusterBuildStrategy` named `wasmedge` in order to build a wasm container image with the `module.wasm.image/variant: compat-smart` annotation.
 
-### Function Serving
+### The serving phase of the wasm container images
 
-When the value of the `spec.workloadRuntime` field is `wasmedge` or the annotations of the Function CR contains `module.wasm.image/variant: compat-smart`:
-- If `spec.serving.annotations` does not contain `module.wasm.image/variant`, `module.wasm.image/variant: compat-smart` will be automatically generated into `spec.serving.annotations`
-- If `spec.serving.template.runtimeClassName` field is not set, the value of this field will be automatically set to `openfunction-crun`
+When `function.spec.workloadRuntime` is set to `wasmedge` or the function's annotation contains `module.wasm.image/variant: compat-smart`:
+- If `function.spec.serving.annotations` does not contain `module.wasm.image/variant`, `module.wasm.image/variant: compat-smart` will be automatically added to `function.spec.serving.annotations`.
+- If `function.spec.serving.template.runtimeClassName` is not set, this `runtimeClassName` will be automatically set to the default `openfunction-crun`
 
-> If your kubernetes cluster is in a public cloud, such as `azure`, you can set `spec.serving.template.runtimeClassName` to override the default `runtimeClassName`.
+> If your kubernetes cluster is in a public cloud like `Azure`, you can set `spec.serving.template.runtimeClassName` manually to override the default `runtimeClassName`.
 
 ## Build and run wasm functions
 

…ng-started/Quickstarts/wasm-functions.md …ng-started/Quickstarts/wasm_functions.mdcontent/en/docs/getting-started/Quickstarts/wasm-functions.md renamed to content/en/docs/getting-started/Quickstarts/wasm_functions.md content/en/docs/getting-started/Quickstarts/wasm-functions.md renamed to content/en/docs/getting-started/Quickstarts/wasm_functions.md

@@ -13,4 +13,4 @@ Here you can find wasm function examples:
 |----------|------------------------------------------------------------------------------------------------------------------|----------|
 | Rust     | [wasmedge-http-server](https://github.com/OpenFunction/samples/tree/main/functions/knative/wasmedge/http-server) | wasmedge |
 
-> You can find more info about these Function [here](../../../concepts/wasmedge_integration/)
+> You can find more info about these Function [here](../../../concepts/wasm_functions/)