suggest about bpchar data type in the document

I hope that：

 in the  https://www.postgresql.org/docs/14/datatype-characterin.html ，It needs to be written clearly  “bpchar” data type，

and in the above url, Only mentioned “blank padded” ，If someone does not know  this knowledge point（blank padded =bp），he/she  will make a detour in the study of  character datatype。

so，To make the document more friendly, I suggest that： in the  https://www.postgresql.org/docs/14/datatype-characterin.htm  ，It needs to be written clearly  “bpchar” data type。

thanks a lot！