Fix formatting (#3)

- Fix formatting (2f39b5f0ae44bec26b22b1a299d804e6572d270f)


Co-authored-by: Dimitri <dvruette@users.noreply.huggingface.co>

README.md

@@ -134,7 +134,7 @@ of a worldwide crowd-sourcing effort involving over 13,500 volunteers.
 
 OpenAssistant Conversations incorporates 35 different languages with a distribution of messages as follows:
 
-**Languages with over 1000 messages
+**Languages with over 1000 messages**
 - English: 71956
 - Spanish: 43061
 - Russian: 9089
@@ -150,7 +150,7 @@ OpenAssistant Conversations incorporates 35 different languages with a distribut
 - Japanese: 1018
 
 <details>
-  <summary>**Languages with < 1000 messages**</summary>
+  <summary><b>Languages with under 1000 messages</b></summary>
   <ul>
     <li>Vietnamese: 952</li>
     <li>Basque: 947</li>