Refine documentation and comments.

src/module/resolvers/collection.rs

@@ -1,7 +1,7 @@
 use crate::stdlib::{boxed::Box, ops::AddAssign, vec::Vec};
 use crate::{Engine, EvalAltResult, Module, ModuleResolver, Position, Shared};
 
-/// [Module] resolution service that holds a collection of [module][Module] resolves,
+/// [Module] resolution service that holds a collection of module resolvers,
 /// to be searched in sequential order.
 ///
 /// # Example

src/module/resolvers/mod.rs

@@ -29,7 +29,7 @@ pub trait ModuleResolver: SendSync {
         pos: Position,
     ) -> Result<Shared<Module>, Box<EvalAltResult>>;
 
-    /// Resolve a module into an `AST` based on a path string.
+    /// Resolve an `AST` based on a path string.
     ///
     /// Returns [`None`] (default) if such resolution is not supported
     /// (e.g. if the module is Rust-based).

src/module/resolvers/stat.rs

@@ -1,7 +1,7 @@
 use crate::stdlib::{boxed::Box, collections::HashMap, ops::AddAssign, string::String};
 use crate::{Engine, EvalAltResult, Module, ModuleResolver, Position, Shared};
 
-/// [Module] resolution service that serves [modules][Module] added into it.
+/// A static [module][Module] resolution service that serves [modules][Module] added into it.
 ///
 /// # Example
 ///