docs: fix warning in LangRef parsing

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 098e448..4761376 100644 (file)
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -10240,7 +10240,7 @@ non-dereferenceable pointer. See the
 Example:
 """"""""
 
-.. code-block:: llvm
+.. code-block:: text
 
       %w = i32 undef
       %x = freeze i32 %w