use CommonMark vocab

Author: aduh95

actions/login-and-validate.js

@@ -21,7 +21,7 @@ if (Object.hasOwn(request, 'richTextFile')) {
   richTextFile = path.resolve(path.dirname(requestFilePath), request.richTextFile);
   request.richText = fs.readFileSync(richTextFile, 'utf-8');
 }
-const threadElements = request.action !== 'repost' && request.richText?.split(/\n\n---+\n\n/g);
+const threadElements = request.action !== 'repost' && request.richText?.split(/\n\n {0,3}[-_*]{3,}\n\n/g);
 const requests = threadElements?.length ?
     threadElements.map((richText, i) => ({
         ...request,

automation.md

@@ -51,8 +51,8 @@ Content automation is done in the form of adding new JSON files to `records/new`
 ### Threads
 
 To send several messages replying to one another, you can separate each tweet
-using a Markdown separator (a new paragraph consisting of only three dashes or
-more) inside the `richText` or `richTextFile`:
+using a Markdown thematic break (e.g. a new paragraph consisting of only three
+dashes) inside the `richText` or `richTextFile`:
 
 ```markdown
 Here is the first tweet.