Fix details tags

<details> tags at the bottom of the file, at "Translations" and "Translations in progress".

translations/README-es.md

@@ -11,28 +11,40 @@
 >
 > *¡La mejor de las suertes!*
 
-Traducciones:
+<details>
+<summary>Traducciones:</summary>
+
 - [中文版本](translations/README-cn.md)
 - [Tiếng Việt - Vietnamese](translations/README-vi.md)
-- translations in progress:
-    - [Español](https://github.com/jwasham/coding-interview-university/issues/80)
-    - [हिन्दी](https://github.com/jwasham/coding-interview-university/issues/81)
-    - [עברית](https://github.com/jwasham/coding-interview-university/issues/82)
-    - [Bahasa Indonesia](https://github.com/jwasham/coding-interview-university/issues/101)
-    - [Arabic](https://github.com/jwasham/coding-interview-university/issues/98)
-    - [Turkish](https://github.com/jwasham/coding-interview-university/issues/90)
-    - [French](https://github.com/jwasham/coding-interview-university/issues/89)
-    - [Russian](https://github.com/jwasham/coding-interview-university/issues/87)
-    - [Ukrainian](https://github.com/jwasham/coding-interview-university/issues/106)
-    - [Brazilian Portuguese](https://github.com/jwasham/coding-interview-university/issues/113)
-    - [Korean](https://github.com/jwasham/coding-interview-university/issues/118)
-    - [Telugu](https://github.com/jwasham/coding-interview-university/issues/117)
-    - [Polish](https://github.com/jwasham/coding-interview-university/issues/122)
-    - [German](https://github.com/jwasham/coding-interview-university/issues/135)
-    - [Urdu](https://github.com/jwasham/coding-interview-university/issues/140)
-    - [Thai](https://github.com/jwasham/coding-interview-university/issues/156)
-    - [Greek](https://github.com/jwasham/coding-interview-university/issues/166)
-    - [Italian](https://github.com/jwasham/coding-interview-university/issues/170)
+- [Português Brasileiro](translations/README-ptbr.md)
+- [Polish](translations/README-pl.md)
+- [繁體中文](translations/README-tw.md)
+- [Japanese (日本語)](translations/README-ja.md)
+- [Russian](translations/README-ru.md)
+- [German](translations/README-de.md)
+- [Bahasa Indonesia](translations/README-id.md)
+- [ខ្មែរ - Khmer](translations/README-kh.md)
+
+</details>
+
+<details>
+<summary>Traducciones en progreso:</summary>
+
+- [हिन्दी](https://github.com/jwasham/coding-interview-university/issues/81)
+- [עברית](https://github.com/jwasham/coding-interview-university/issues/82)
+- [Arabic](https://github.com/jwasham/coding-interview-university/issues/98)
+- [Turkish](https://github.com/jwasham/coding-interview-university/issues/90)
+- [French](https://github.com/jwasham/coding-interview-university/issues/89)
+- [Ukrainian](https://github.com/jwasham/coding-interview-university/issues/106)
+- [Korean(한국어)](https://github.com/jwasham/coding-interview-university/issues/118)
+- [Telugu](https://github.com/jwasham/coding-interview-university/issues/117)
+- [Urdu](https://github.com/jwasham/coding-interview-university/issues/519)
+- [Thai](https://github.com/jwasham/coding-interview-university/issues/156)
+- [Greek](https://github.com/jwasham/coding-interview-university/issues/166)
+- [Italian](https://github.com/jwasham/coding-interview-university/issues/170)
+- [Malayalam](https://github.com/jwasham/coding-interview-university/issues/239)
+
+</details>
 
 ## ¿Qué es esto?