docs: fix typos (#202)

Hello
I fixed several minor typos.

---------

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/artifacts/solc/src/remappings.rs

@@ -723,7 +723,7 @@ fn find_remapping_candidates(
 
     // need to find the actual next window in the event `open` is a lib dir
     let window_start = next_nested_window(open, current_dir);
-    // finally, we need to merge, adjust candidates from the same level and opening window
+    // finally, we need to merge, adjust candidates from the same level and open window
     if is_candidate
         || candidates
             .iter()
@@ -771,8 +771,8 @@ fn dir_distance(root: &Path, current: &Path) -> usize {
 }
 
 /// This finds the next window between `root` and `current`
-/// If `root` ends with a `lib` component then start join components from `current` until no valid
-/// window opener is found
+/// If `root` ends with a `lib` component then start joining components from `current` until no
+/// valid window opener is found
 fn next_nested_window(root: &Path, current: &Path) -> PathBuf {
     if !is_lib_dir(root) || root == current {
         return root.to_path_buf();

crates/compilers/src/artifact_output/configurable.rs

@@ -546,7 +546,7 @@ impl ExtraOutputValues {
     }
 }
 
-/// Determines what to emit as additional file
+/// Determines what to emit as an additional file
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
 pub struct ExtraOutputFiles {
     pub abi: bool,

crates/compilers/src/artifact_output/mod.rs

@@ -377,7 +377,7 @@ impl<T> Artifacts<T> {
         })
     }
 
-    ///  Finds the artifact with matching path and name
+    ///  Finds the artifact with a matching path and name
     pub fn find(&self, contract_path: &Path, contract_name: &str) -> Option<&T> {
         self.0.iter().filter(|(path, _)| path.as_path() == contract_path).find_map(
             |(_file, contracts)| {