Add support and release content to CAPIBM book doc

[Niharika0306]

What this PR does / why we need it:
This PR adds the support and release content to CAPIBM book doc.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1498

Special notes for your reviewer:

/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

 Add support and release content to CAPIBM book doc

[netlify]

✅ Deploy Preview for kubernetes-sigs-cluster-api-ibmcloud ready!

Name	Link
🔨 Latest commit	7b94c48
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-sigs-cluster-api-ibmcloud/deploys/6568446f7f5c560007eb4eda
😎 Deploy Preview	https://deploy-preview-1520--kubernetes-sigs-cluster-api-ibmcloud.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[k8s-ci-robot]

Hi @Niharika0306. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[mkumatag]

/cc @Prajyot-Parab

[Prajyot-Parab]

/ok-to-test

[Prajyot-Parab]

Suggested change

	- [Contributing Guidelines](./developer/contributing-guidelines.md)
	- [Release Support Guidelines](./developer/release-support-guidelines.md)

@Niharika0306 Lets rename this as above.

[Niharika0306]

Yes, makes sense. I have addressed it.

[Prajyot-Parab]

/lgtm

[Prajyot-Parab]

What this PR does / why we need it: This PR adds the support and release content to CAPIBM book doc.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged): Fixes #1498

Special notes for your reviewer:

/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

NONE

@Niharika0306 Update Release note section
Add support and release content to CAPIBM book doc

[Niharika0306]

What this PR does / why we need it: This PR adds the support and release content to CAPIBM book doc.
Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged): Fixes #1498
Special notes for your reviewer:
/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

NONE

@Niharika0306 Update Release note section Add support and release content to CAPIBM book doc

Addressed.

[Prajyot-Parab]

ptal @mkumatag

[mkumatag]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mkumatag, Niharika0306, Prajyot-Parab

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [mkumatag]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[Prajyot-Parab]

/cherrypick release-0.6

[k8s-infra-cherrypick-robot]

@Prajyot-Parab: #1520 failed to apply on top of branch "release-0.6":

Applying: Add support and release content to CAPIBM book doc
Using index info to reconstruct a base tree...
M	docs/book/src/SUMMARY.md
M	docs/book/src/developer/index.md
Falling back to patching base and 3-way merge...
Auto-merging docs/book/src/developer/index.md
CONFLICT (content): Merge conflict in docs/book/src/developer/index.md
Auto-merging docs/book/src/SUMMARY.md
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 Add support and release content to CAPIBM book doc
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherrypick release-0.6

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.