Adding Validation Diagram (#2328)

Fixing the branch. Adding sample request, app api diagram

containers/validation/description.md

@@ -43,3 +43,29 @@ To build the Docker image for the Validation service from source code instead of
 ### The API 
 
 When viewing these docs from the `/redoc` endpoint on a running instance of the Validation service or the DIBBs website, detailed documentation on the API will be available below.
+
+## Diagrams and Sample Requests
+
+### Sample Request
+
+The request must have these keys included. The `message` must be escaped
+```
+{
+    "message_type": "ecr",
+    "include_error_types": "errors",
+    "message": "<ClinicalDocument xmlns=\\\"urn:hl7-org:v3\\\" xmlns:xsi=\\\"http://www.w3.org/2001/XMLSchema-instance\\\">\\n<realmCode code=\\\"US\\\"/>\\n<typeId extension=\\\"POCD_HD000040\\\" root=\\\"2.16.840.1.113883.1.3\\\"/>\\n<templateId root=\\\"1.2.840.114350.1.72.1.51693\\\"/>\\n<templateId root=\\\"2.16.840.1.113883.10.20.22.1.1\\\"/>\\n<templateId extension=\\\"2015-08-01\\\" root=\\\"2.16.840.1.113883.10.20.22.1.1\\\"/>\\n<templateId extension=\\\"2016-12-01\\\" root=\\\"2.16.840.1.113883.10.20.15.2\\\"/>\\n<id root=\\\"8675309a-7754-r2d2-c3p0-973d9f777777\\\"/>\\n<code code=\\\"55751-2\\\" codeSystem=\\\"2.16.840.1.113883.6.1\\\" codeSystemName=\\\"LOINC\\\" displayName=\\\"Initial Public Health Case Report\\\"/>\\n<title>Initial Public Health Case Report</title>\\n<effectiveTime value=\\\"20230409130417-0700\\\"/>\\n<confidentialityCode code=\\\"N\\\" codeSystem=\\\"2.16.840.1.113883.5.25\\\" displayName=\\\"Normal\\\"/>\\n<languageCode code=\\\"en-US\\\"/>\\n<setId assigningAuthorityName=\\\"EPC\\\" extension=\\\"8675309a-7754-r2d2-c3p0-973d9f777777\\\" root=\\\"1.2.840.114350.1.13.297.3.7.1.1\\\"/>\\n<versionNumber value=\\\"2\\\"/>\\n<recordTarget>\\n<patientRole>\\n<id extension=\\\"MRN1234567890\\\" root=\\\"1.2.840.114350.1.13.297.3.7.3.688884.100\\\"/>\\n<addr use=\\\"HP\\\">\\n<streetAddressLine>4720 MEGA ST. NW</streetAddressLine>\\n<city>NORTH CANTON</city>\\n<state>OH</state>\\n<postalCode>44720</postalCode>\\n<country>USA</country>\\n<useablePeriod xmlns:xsi=\\\"http://www.w3.org/2001/XMLSchema-instance\\\" xsi:type=\\\"IVL_TS\\\">\\n <low value=\\\"20181129\\\"/>\\n<high nullFlavor=\\\"NA\\\"/>\\n</useablePeriod>\\n</addr>\\n<telecom nullFlavor=\\\"UNK\\\"/>\\n<patient>\\n<name use=\\\"L\\\">\\n<given>Jon</given>\\n<family>Shepherd</family>\\n<validTime>\\n<low nullFlavor=\\\"NA\\\"/>\\n<high nullFlavor=\\\"NA\\\"/>\\n</validTime>\\n</name> ... </ClinicalDocument>"
+}
+```
+
+### Application API
+```mermaid
+graph TD
+    A[Validation]
+    subgraph API Endpoints
+        direction TB
+        N[POST /validate]
+    end
+    A --> N
+    style A fill:#f9f,stroke:#333,stroke-width:4px,color:#000
+    style API Endpoints fill:#bfb,stroke:#333,stroke-width:2px
+```