TST: Add style.py to the doctest check

Author: Leonardofreua

ci/code_checks.sh

@@ -122,6 +122,7 @@ if [[ -z "$CHECK" || "$CHECK" == "doctests" ]]; then
       pandas/io/sas/ \
       pandas/io/sql.py \
       pandas/io/formats/format.py \
+      pandas/io/formats/style.py \
       pandas/tseries/
     RET=$(($RET + $?)) ; echo $MSG "DONE"