Docs: Update provider readme files

packages/providers/upload-aws-s3/README.md

@@ -21,11 +21,13 @@ yarn add @strapi/provider-upload-aws-s3
 npm install @strapi/provider-upload-aws-s3 --save
 ```
 
-## Configurations
+## Configuration
 
-Your configuration is passed down to the provider. (e.g: `new AWS.S3(config)`). You can see the complete list of options [here](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#constructor-property)
+- `provider` defines the name of the provider
+- `providerOptions` is passed down during the construction of the provider. (ex: `new AWS.S3(config)`). [Complete list of options](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#constructor-property).
+- `actionOptions` is passed directly to the parameters to each method respectively. You can see the complete list of [upload options](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#upload-property) and [delete options](https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/S3.html#deleteObject-property)
 
-See the [using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) documentation for information on installing and using a provider. And see the [environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables) for setting and using environment variables in your configs.
+See the [documentation about using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) for information on installing and using a provider. To understand the usage environment variables in Strapi, please refer to the [documentation of environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables).
 
 ### Provider Configuration
 
@@ -45,6 +47,10 @@ module.exports = ({ env }) => ({
           Bucket: env('AWS_BUCKET'),
         },
       },
+      actionOptions: {
+        upload: {},
+        delete: {},
+      },
     },
   },
   // ...

packages/providers/upload-cloudinary/README.md

@@ -21,13 +21,13 @@ yarn add @strapi/provider-upload-cloudinary
 npm install @strapi/provider-upload-cloudinary --save
 ```
 
-## Configurations
+## Configuration
 
-Your configuration is passed down to the cloudinary configuration. (e.g: `cloudinary.config(config)`). You can see the complete list of options [here](https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters)
+- `provider` defines the name of the provider
+- `providerOptions` is passed down during the construction of the provider. (ex: `cloudinary.config`). [Complete list of options](https://cloudinary.com/documentation/cloudinary_sdks#configuration_parameters).
+- `actionOptions` is passed directly to each method respectively allowing for custom options. You can see the complete list of [upload options](https://cloudinary.com/documentation/image_upload_api_reference#upload_optional_parameters) and [delete options](https://cloudinary.com/documentation/image_upload_api_reference#destroy_optional_parameters)
 
-`actionOptions` are passed directly to the upload and delete functions respectively allowing for custom options such as folder, type, etc. You can see the complete list of upload options [here](https://cloudinary.com/documentation/image_upload_api_reference#upload_optional_parameters) and delete options [here](https://cloudinary.com/documentation/image_upload_api_reference#destroy_optional_parameters)
-
-See the [using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) documentation for information on installing and using a provider. And see the [environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables) for setting and using environment variables in your configs.
+See the [documentation about using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) for information on installing and using a provider. To understand the usage environment variables in Strapi, please refer to the [documentation of environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables).
 
 ### Provider Configuration
 

packages/providers/upload-rackspace/README.md

@@ -21,11 +21,13 @@ yarn add @strapi/provider-upload-rackspace
 npm install @strapi/provider-upload-rackspace --save
 ```
 
-## Configurations
+## Configuration
 
-Your configuration is passed down to the client initialization. (e.g: `createClient(config)`). The implementation is based on the package `pkgcloud`. You can read the docs [here](https://github.com/pkgcloud/pkgcloud#storage).
+- `provider` defines the name of the provider
+- `providerOptions` is passed down during the construction of the provider. (ex: `createClient(config)`). [Complete list of options](https://github.com/pkgcloud/pkgcloud/blob/master/docs/providers/rackspace/README.md). The implementation is based on the package `pkgcloud`. [Documentation](https://github.com/pkgcloud/pkgcloud#storage).
+- `actionOptions` is passed directly to each method respectively allowing for custom options. You can see the complete list of [upload options](https://github.com/pkgcloud/pkgcloud#upload-a-file) and [delete options](https://github.com/pkgcloud/pkgcloud/blob/master/docs/providers/rackspace/storage.md#clientremovefilecontainer-file-functionerr-result--)
 
-See the [using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) documentation for information on installing and using a provider. And see the [environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables) for setting and using environment variables in your configs.
+See the [documentation about using a provider](https://docs.strapi.io/developer-docs/latest/plugins/upload.html#using-a-provider) for information on installing and using a provider. To understand the usage environment variables in Strapi, please refer to the [documentation of environment variables](https://docs.strapi.io/developer-docs/latest/setup-deployment-guides/configurations/optional/environment.html#environment-variables).
 
 ### Provider Configuration
 
@@ -43,6 +45,10 @@ module.exports = ({ env }) => ({
         region: env('RACKSPACE_REGION'),
         container: env('RACKSPACE_CONTAINER'),
       },
+      actionOptions: {
+        upload: {},
+        delete: {},
+      },
     },
   },
   // ...