Add more docs for business related structs

crates/teloxide-core/src/types/business_intro.rs

@@ -2,6 +2,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::types::Sticker;
 
+/// An introduction for a Business.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct BusinessIntro {
     /// Title text of the business intro

crates/teloxide-core/src/types/business_location.rs

@@ -2,6 +2,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::types::Location;
 
+/// Details about the location of a Business
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct BusinessLocation {
     /// Address of the business.

crates/teloxide-core/src/types/business_opening_hours.rs

@@ -2,6 +2,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::types::BusinessOpeningHoursInterval;
 
+/// Details about the opening hours of a Business.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct BusinessOpeningHours {
     /// Unique name of the time zone for which the opening hours are defined.

crates/teloxide-core/src/types/business_opening_hours_interval.rs

@@ -1,5 +1,6 @@
 use serde::{Deserialize, Serialize};
 
+/// Time intervals used to describe the opening hours of a Business.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct BusinessOpeningHoursInterval {
     /// The minute's sequence number in a week, starting on Monday, marking the