add readme.java.md and modify readme files (#18492)

* add readme.java.md and modify readme files

* update typescript sdk output-folder path

Author: Noelin

specification/fluidrelay/resource-manager/readme.java.md

@@ -0,0 +1,13 @@
+## Java
+
+These settings apply only when `--java` is specified on the command line.
+Please also specify `--azure-libraries-for-java-folder=<path to the root directory of your azure-libraries-for-java clone>`.
+
+``` yaml $(java)
+azure-arm: true
+fluent: true
+namespace: com.microsoft.azure.management.fluidrelay
+license-header: MICROSOFT_MIT_NO_CODEGEN
+payload-flattening-threshold: 1
+output-folder: $(azure-libraries-for-java-folder)/azure-mgmt-fluidrelay
+```

specification/fluidrelay/resource-manager/readme.md

@@ -28,7 +28,7 @@ These are the global settings for the adp.
 title: FluidRelayManagementClient
 openapi-type: arm
 openapi-subtype: rpaas
-tag: package-2021-06-15-preview
+tag: package-2022-02-15
 ```
 
 ### Tag: package-2021-03-12-preview

specification/fluidrelay/resource-manager/readme.typescript.md

@@ -6,8 +6,8 @@ Please also specify `--typescript-sdks-folder=<path to root folder of your azure
 ```yaml $(typescript)
 typescript:
   azure-arm: true
-  package-name: "fluidrelay"
-  output-folder: "$(typescript-sdks-folder)/packages/fluidrelay"
+  package-name: "@azure/arm-fluidrelay"
+  output-folder: "$(typescript-sdks-folder)/sdk/fluidrelay/arm-fluidrelay"
   payload-flattening-threshold: 1
   generate-metadata: true
 ```