fmt_directory_entry = "{counter:>02}. {director:<52} {avg}"

[buran]

{counter:>02}
counter is the name that you want formated
> means it should be right-aligned
0 - fill-in symbol if len is less than the required length
2 - the required length

in the link I shared, in the first green box, the first row format_spec explains it

format_spec ::= [[fill]align][sign][#][0][width][grouping_option][.precision][type]
fill ::= <any character>
align ::= "<" | ">" | "=" | "^"
sign ::= "+" | "-" | " "
width ::= digit+
grouping_option ::= "_" | ","
precision ::= digit+
type ::= "b" | "c" | "d" | "e" | "E" | "f" | "F" | "g" | "G" | "n" | "o" | "s" | "x" | "X" | "%"