[New] App Platform AI Guides (#7216)

* add initial drafts

* additions to LLM guide

* copy added to both guides

* copy added to RAG guide

* add closing copy to RAG guide

* add frontmatter descriptions

* copy edits and added screenshots for LLM guide

* copy edits for both guides, image additions

* copy edits for RAG guide

* copy edits for both guides and screenshots added for RAG guide

* yaml file formatting fixes

* copy edit

* copy edits and beta notices added

* front matter edits to rag guide

* publish date change

* add new SVG diagram for LLM guide

* new SVG diagram

* copy edits for both guides

Author: jddocs

ci/vale/dictionary.txt

@@ -86,6 +86,7 @@ apxs
 architected
 architecting
 aren
+Argocd
 argv
 arpack
 arping
@@ -376,6 +377,7 @@ completekey
 composable
 conda
 config
+configmap
 configr
 configs
 configtest
@@ -1295,6 +1297,7 @@ Kuma
 kustomize
 kuznetosv
 Kyber
+Kyverno
 lambdabunker
 Laminas
 Langa
@@ -1508,6 +1511,7 @@ Microweber
 middlebox
 middleboxes
 middleware
+milvus
 Milvus
 mimikatz
 minecraft