chore: fix spelling issues (#248)

Signed-off-by: camcui <cuishua@sina.cn>
Co-authored-by: camcui <cuishua@sina.cn>

Author: mattsse

crates/compilers/src/compile/project.rs

@@ -82,7 +82,7 @@
 //! provided to solc.
 //! For every file the cache file contains a dedicated [cache entry](crate::cache::CacheEntry),
 //! which represents the state of the file. A solidity file can contain several contracts, for every
-//! contract a separate [artifact](crate::Artifact) is emitted. Therefor the entry also tracks all
+//! contract a separate [artifact](crate::Artifact) is emitted. Therefore the entry also tracks all
 //! artifacts emitted by a file. A solidity file can also be compiled with several solc versions.
 //!
 //! For example in `A(<=0.8.10) imports C(>0.4.0)` and

crates/compilers/src/flatten.rs

@@ -115,7 +115,7 @@ impl Visitor for ReferencesCollector {
 type Updates = HashMap<PathBuf, HashSet<(usize, usize, String)>>;
 
 pub struct FlatteningResult<'a> {
-    /// Updated source in the order they shoud be written to the output file.
+    /// Updated source in the order they should be written to the output file.
     sources: Vec<String>,
     /// Pragmas that should be present in the target file.
     pragmas: Vec<String>,
@@ -361,7 +361,7 @@ impl Flattener {
     ///
     /// This approach works by firstly collecting all IDs of import directives, and then looks for
     /// any references of them. Once the reference is found, it's full length is getting removed
-    /// from source + 1 charater ('.')
+    /// from source + 1 character ('.')
     ///
     /// This should work correctly for vast majority of cases, however there are situations for
     /// which such approach won't work, most of which are related to code being formatted in an
@@ -750,7 +750,7 @@ impl Flattener {
             .collect()
     }
 
-    /// Removes all license identifiers from all sources. Returns licesnse identifier from target
+    /// Removes all license identifiers from all sources. Returns license identifier from target
     /// file, if any.
     fn process_licenses(&self, updates: &mut Updates) -> Option<&str> {
         let mut target_license = None;

crates/compilers/src/lib.rs

@@ -79,7 +79,7 @@ pub struct Project<
     /// Additional settings for cases when default compiler settings are not enough to cover all
     /// possible restrictions.
     pub additional_settings: BTreeMap<String, C::Settings>,
-    /// Mapping from file path to requrements on settings to compile it.
+    /// Mapping from file path to requirements on settings to compile it.
     ///
     /// This file will only be included into compiler inputs with profiles which satisfy the
     /// restrictions.