docs: new API user guide and API reference

Signed-off-by: mbshields <[email protected]>

.wordlist.txt

@@ -1,7 +1,6 @@
 amd
 apache
 API
-apikey
 APIs
 artifacthub
 ASLR
@@ -71,7 +70,6 @@ GitLab
 golang
 GPG
 graphQL
-graphql
 gui
 haproxy
 hostname
@@ -110,7 +108,6 @@ MacOS
 maxRetries
 md
 MERCHANTABILITY
-Mgmt
 mgmt
 minify
 mkdocs
@@ -122,14 +119,12 @@ nginx
 NodePort
 OAuth
 OCI
-oci
 OIDC
 oidc
 onboarding
 Onboarding
 onDemand
 onlySigned
-OpenAPI
 OpenID
 oras
 ORA