add TemplateString docs

src/core/mustache/template_string.rs

@@ -3,6 +3,9 @@ use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use super::{Mustache, Segment};
 use crate::core::path::PathString;
 
+/// TemplateString acts as wrapper over mustache but supports serialization and
+/// deserialization. It provides utilities for parsing, resolving, and comparing
+/// template strings.
 #[derive(Debug, derive_more::Display, Default)]
 pub struct TemplateString(Mustache);
 
@@ -12,7 +15,6 @@ impl PartialEq for TemplateString {
     }
 }
 
-
 impl TryFrom<&str> for TemplateString {
     type Error = anyhow::Error;
     fn try_from(value: &str) -> anyhow::Result<Self> {