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README.md

@@ -9,7 +9,7 @@ If you have a [Jekyll](https://jekyllrb.com/) static site,
 this plugin may help you automatically
 translate its pages to another language, through
 [ChatGPT](https://chat.openai.com/). See how it
-works for [my blog](https://github.com/yegor256/ru.yegor256.com), 
+works for [my blog](https://github.com/yegor256/ru.yegor256.com),
 for example [this page](https://ru.yegor256.com/2023-08-13-dictators.html)
 is translated to
 [English](https://ru.yegor256.com/english/2023-08-13-dictators.html).
@@ -49,21 +49,21 @@ French is `_layout/translated.html` (you must have these files).
 
 OpenAI API KEY must be set in the `OPENAI_API_KEY` environment variable,
 otherwise
-the plugin will not do any translation and won't generate translated pages. 
+the plugin will not do any translation and won't generate translated pages.
 You can get your key
 [here][open-ai].
 
 OpenAI API base URL can be customized by the `OPENAI_API_BASE`
 environment variable.
-If this variable is not set, the default value is `https://api.openai.com/`. 
+If this variable is not set, the default value is `https://api.openai.com/`.
 
 Inside the original page you can use `{{ page.chatgpt-translate.urls[XX] }}`
 in order to render the URL
-of the translated page, where `XX` is the [ISO-639-1][iso-693]
+of the translated page, where `XX` is the [ISO-639-1][iso-639]
 code of the target language.
 Inside the translated page you can use
 `{{ page.chatgpt-translate.original-url }}` in order
-to get the URL of the page that was translated. 
+to get the URL of the page that was translated.
 
 You can also use `{{ page.chatgpt-translate.model }}`
 inside both the original page and the translated one,
@@ -86,7 +86,7 @@ If this option is not specified,
 * `model` (optional) — specifies the model to use by ChatGPT,
   [examples are here](https://github.com/alexrudall/ruby-openai#models).
 
-* `source` (optional) — is the [ISO-639-1][iso-693] code of the source language.
+* `source` (optional) — is the [ISO-639-1][iso-639] code of the source language.
 
 * `no_download` (optional) — if this attribute is present, the plugin won't try
   to find HTML versions of translated pages in the Internet and won't try to