fix(core): Fixed module name inconsistencies and documentation links

ts/medium.classes.publication.ts

@@ -1,5 +1,6 @@
-import { MediumAccount } from './medium.classes.mediumaccount';
-import * as plugins from './medium.plugins';
+import { MediumAccount } from './medium.classes.account.js';
+import { type IPostData, MediumPost } from './medium.classes.post.js';
+import * as plugins from './medium.plugins.js';
 
 export interface IMediumPublication {
   id: string;
@@ -47,6 +48,11 @@ export class MediumPublication implements IMediumPublication {
     return ownPublications;
   }
 
+  public static async getPublicationByName(mediumAccountArg: MediumAccount, publicationNameArg: string) {
+    const publications = await this.getAllPublications(mediumAccountArg);
+    return publications.find(publicationArg => publicationArg.name === publicationNameArg);
+  }
+
   // INSTANCE
   public mediumAccountRef: MediumAccount;
 
@@ -57,6 +63,12 @@ export class MediumPublication implements IMediumPublication {
   imageUrl: string;
 
   constructor(mediumAccount: MediumAccount, dataArg: IMediumPublication) {
+    this.mediumAccountRef = mediumAccount;
     Object.assign(this, dataArg);
   }
+
+  public async createPost(dataArg: IPostData): Promise<MediumPost> {
+    const result = await MediumPost.createPost(this, dataArg);
+    return result;
+  }
 }