docs(filters): fix typo `columwrapper` => `columnwrapper`
diff --git a/jinja2/filters.py b/jinja2/filters.py
index b55e176..10102b0 100644
--- a/jinja2/filters.py
+++ b/jinja2/filters.py
@@ -725,7 +725,7 @@
 
     .. sourcecode:: html+jinja
 
-        <div class="columwrapper">
+        <div class="columnwrapper">
           {%- for column in items|slice(3) %}
             <ul class="column-{{ loop.index }}">
             {%- for item in column %}