Request: Adding new configurable rule: operation-operationId-exclude-OPTIONS

configurable-rules/operation-operationId-exclude-OPTIONS/README.md

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+# Variant of the `operation-operationId` rule that excludes `OPTIONS` operations
+
+Author:
+- [@nickcorby](https://github.com/nickcorby)
+
+## What this does and why
+
+This rule throws an error for all operations that are missing the `operationId` property, while filtering out specific operations that you want to exclude from this validation (e.g. `OPTIONS`).
+
+This rule can be tweaked to exclude any combination of operations, or inversely to **include** set operations. 
+
+## Code
+
+This rule is added to the `rules` section of your `redocly.yaml` file:
+
+```yaml
+rule/operation-operationId-exclude-OPTIONS:
+  subject:
+    type: Operation
+    filterOutParentKeys:
+      - options
+  assertions:
+    required:
+      - operationId
+  message: Operation is missing 'operationId' property.
+  severity: error
+```
+
+The `filterOutParentKeys` property allows you to define which operations you would like to exclude from the rule:
+
+```yaml
+    type: Operation
+    filterOutParentKeys:
+      - options
+```
+
+This can be extended to multiple operations:
+
+```yaml
+    type: Operation
+    filterOutParentKeys:
+      - options
+      - delete
+```
+
+Alternatively, you can use the `filterInParentKeys` property to define which operations you would like to include in the rule:
+
+```yaml
+    type: Operation
+    filterInParentKeys:
+      - get
+      - post
+```
+
+## Examples
+
+With the rule configured with `severity: error`, the following snippet of a `GET` and `POST` operations will trigger this rule and display an error:
+
+```yaml
+openapi: 3.1.0
+info: {}
+paths:
+  /example:
+    get: # Error: Operation is missing 'operationId' property. Rule: operation-operationId-exclude-OPTIONS
+      responses:
+        '200':
+          content: {}
+
+    post: # Error: Operation is missing 'operationId' property. Rule: operation-operationId-exclude-OPTIONS
+      responses:
+        '201':
+          content: {}
+
+    options: # No error
+      responses:
+        '204':
+          content: {}
+```
+
+**Note:** If you are using a ruleset that includes the [operation-operationId](https://redocly.com/docs/cli/rules/oas/operation-operationId) rule (like `recommended`), you will need to disable this rule in order for the configurable rule to apply.
+
+If your `redocly.yaml` file contains:
+
+```yaml
+extends:
+  - recommended
+```
+You will need to include the following snippet in the `rules` property:
+
+```yaml
+rules:
+  operation-operationId: off
+```
+
+## References
+
+Assisted by [AlbinaBlazhko17](https://github.com/AlbinaBlazhko17)

configurable-rules/operation-operationId-exclude-OPTIONS/redocly.yaml

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+rule/operation-operationId-exclude-OPTIONS:
+  subject:
+    type: Operation
+    filterOutParentKeys:
+      - options
+  assertions:
+    required:
+      - operationId
+  message: Operation is missing 'operationId' property.
+  severity: error