Add module readmes to json output (TypeStrong#2500)

* Add module readmes to json output

Resolves TypeStrong#2499

* deserialize readme unconditionally

Author: JMBeresford

src/lib/models/reflections/declaration.ts

@@ -311,6 +311,7 @@ export class DeclarationReflection extends ContainerReflection {
                 this.implementedTypes,
             ),
             implementedBy: serializer.toObjectsOptional(this.implementedBy),
+            readme: Comment.serializeDisplayParts(serializer, this.readme),
         };
     }
 
@@ -320,14 +321,15 @@ export class DeclarationReflection extends ContainerReflection {
     ): void {
         super.fromObject(de, obj);
 
+        if (obj.readme) {
+            this.readme = Comment.deserializeDisplayParts(de, obj.readme);
+        }
+
         // This happens when merging multiple projects together.
         // If updating this, also check ProjectReflection.fromObject.
         if (obj.variant === "project") {
             this.kind = ReflectionKind.Module;
             this.packageVersion = obj.packageVersion;
-            if (obj.readme) {
-                this.readme = Comment.deserializeDisplayParts(de, obj.readme);
-            }
 
             de.defer(() => {
                 for (const [id, sid] of Object.entries(obj.symbolIdMap || {})) {

src/lib/serialization/schema.ts

@@ -177,6 +177,7 @@ export interface DeclarationReflection
             | "getSignature"
             | "setSignature"
             | "typeParameters"
+            | "readme"
         > {}
 
 /** @category Reflections */