feat: updated diagram and variable desc

[Ak-sky]

Description

• Updated ref. diagram and CBR related changes.
• Updated the order for the CBR variable.
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Release notes content

Drop down added for cbr_enforcement_mode, containing the values to enabled, disabled, or report for CBR rule.

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[Ak-sky]

/run pipeline

[ocofaigh]

The ibm_catalog.json should have CBR mentioned in its feature list

[ocofaigh]

see comments

[ocofaigh]

this is missing the full stop at the end of the sentence.

I'm not a fan of "be aware that most traffic flow will be blocked". Can we come up with some more descriptive. Or a link that actually explains what traffic is allowed

[Ak-sky]

@ocofaigh,

• we could link this IBM cloud doc- VPC reference architecture for IBM Cloud for Financial Services OR IBM Cloud Framework for Financial Services to cbr_enforcement_mode variable
  as we have already linked Pre-wired CBR configuration for FS Cloud to the provision_cbr variable.

OR

• update the description like below including Pre-wired CBR configuration for FS Cloud again in cbr_enforcement_mode variable as well.

variable "cbr_enforcement_mode" {
  type        = string
  description = "Enforcement mode of the CBR rules. Valid values are `enabled`, `disabled`, or `report`. When set to `enabled`, traffic will be restricted according to [defined rules](https://github.com/terraform-ibm-modules/terraform-ibm-cbr/tree/main/modules/fscloud), allowing only permitted connections while blocking all others. `report` mode monitors CBR rules and logged in Activity Tracker without blocking traffic which is useful for testing. Default is report. [Learn more](https://cloud.ibm.com/docs/account?topic=account-context-restrictions-whatis#rule-enforcement)."
  default     = "report"
}

Please suggest.

[ocofaigh]

/run pipeline

[terraform-ibm-modules-ops]

🎉 This PR is included in version 2.0.6 🎉

The release is available on:

• GitHub release
• v2.0.6

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