Remove space-padding from <pre> blocks

1 files changed, 7 insertions, 7 deletions

diff --git a/prolog/problems/lists/permute_2/en.py b/prolog/problems/lists/permute_2/en.py
index 29d287f..b5dae76 100644
--- a/prolog/problems/lists/permute_2/en.py
+++ b/prolog/problems/lists/permute_2/en.py
@@ -6,13 +6,13 @@ slug = 'generate permutations of a list'
 description = '''\
 <p><code>permute(L1, L2)</code>: the list <code>L2</code> is a permutation of the elements of the list <code>L1</code>.</p>
 <pre>
-  ?- permute([1,2,3], L).
-    L = [1,2,3] ;
-    L = [1,3,2] ;
-    L = [2,1,3] ;
-    L = [2,3,1] ;
-    L = [3,1,2] ;
-    L = [3,2,1].
+?- permute([1,2,3], L).
+  L = [1,2,3] ;
+  L = [1,3,2] ;
+  L = [2,1,3] ;
+  L = [2,3,1] ;
+  L = [3,1,2] ;
+  L = [3,2,1].
 </pre>'''
 
 hint = {}