Improve language tag

Hi! As the model is multilingual, this is a PR to add other languages than English to the language tag to improve the referencing. Note that 29 languages are announced in the README, but only 13 are explicitly listed. I was therefore only able to add these 13 languages.

README.md

@@ -1,12 +1,24 @@
----
-datasets:
-- kanhatakeyama/ramdom-to-fixed-multiturn-Calm3
-language:
-- ja
-base_model:
-- Qwen/Qwen2.5-1.5B-Instruct
-tags:
-- unsloth
----
-
+---
+datasets:
+- kanhatakeyama/ramdom-to-fixed-multiturn-Calm3
+language:
+- zho
+- eng
+- fra
+- spa
+- por
+- deu
+- ita
+- rus
+- jpn
+- kor
+- vie
+- tha
+- ara
+base_model:
+- Qwen/Qwen2.5-1.5B-Instruct
+tags:
+- unsloth
+---
+
 Qwen2.5-1.5b-Instructを日本語データセットで継続事前学習させたLoRAです（あとで追記）