Cred store docs days (#4579)

* add a new cred management files

* adding credential management files

* fixed type-os, added ent labels, grouped cli/ui

* added reference links from concepts section and Vault integration section to new cred management pages

* style guide and formatting enhancements

* style guide and formatting enhancements

* fixes internal link

* docs: Updates for styles and standards

* docs: Fix link structure

* docs: Break out brokering/injection procedures

* Apply batch suggestions from code review

Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

* docs: Clean up commented out code

* docs: Rename index file per best practices

* docs: Update page description meta content

* docs: Add level 2 headings for organization

---------

Co-authored-by: Robin Beck <stellarsquall@protonmail.ch>
Co-authored-by: Dan Heath <76443935+Dan-Heath@users.noreply.github.com>
Co-authored-by: Robin Beck <stellarsquall@users.noreply.github.com>

website/content/docs/integrations/vault/index.mdx

@@ -22,6 +22,12 @@ Timely access to resources creates improvements in workflow efficiency by removi
 
 ## Credential management
 
+To configure credential brokering or credential injection with static credentials on Vault, please see [Manage static credentials with Vault](/boundary/docs/configuration/credential-management/static-cred-vault).
+
+
+# Credentials
+Vault can work with Boundary to be a credential [store](https://developer.hashicorp.com/boundary/docs/concepts/domain-model/credential-stores) and [library](https://developer.hashicorp.com/boundary/docs/concepts/domain-model/credential-libraries), which allows for credentials to be stored in Vault and used by Boundary. There are two configuration options:
+
 Within Boundary, you can configure Vault as a [credential store](/boundary/docs/concepts/domain-model/credential-stores) and [credential library](/boundary/docs/concepts/domain-model/credential-libraries).
 
 There are two configuration options: