remove leading spaces

tetras_extraction/script/src/transform.py

@@ -151,6 +151,8 @@ noire.""","")
     str1 = str1.replace("hauts-parleurs","flèches")
     str1 = str1.replace('\n<img class="inlineImage"','<img class="inlineImage"')
     str1 = str1.replace('\n --- \n','')
+    str1 = str1.replace('\n    ','\n')
+
     return(str1, commentaireInfo_md)