Fix typos

Author: kianmeng

CONTRIBUTING.md

@@ -5,7 +5,7 @@ All contributors are expected to follow our [Code of Conduct](CODE_OF_CONDUCT.md
 
 ## Pull requests
 
-Before opening large pull requests, it is prefered that the change be discussed in a github issue first. This helps keep everyone on the same page, and facilitates a smoother code review process.
+Before opening large pull requests, it is preferred that the change be discussed in a github issue first. This helps keep everyone on the same page, and facilitates a smoother code review process.
 
 ## Testing
 

graphql_client_cli/README.md

@@ -58,7 +58,7 @@ OPTIONS:
     -o, --selected-operation <selected_operation>
             Name of target query. If you don't set this parameter, cli generate all queries in query file.
 	--fragments-other-variant
-            Generate an Unknow variant for enums generated by fragments.
+            Generate an Unknown variant for enums generated by fragments.
 
 
 ARGS:

graphql_client_codegen/src/codegen_options.rs

@@ -19,7 +19,7 @@ pub struct GraphQLClientCodegenOptions {
     pub mode: CodegenMode,
     /// Name of the operation we want to generate code for. If it does not match, we use all queries.
     pub operation_name: Option<String>,
-    /// The name of implemention target struct.
+    /// The name of implementation target struct.
     pub struct_name: Option<String>,
     /// The struct for which we derive GraphQLQuery.
     struct_ident: Option<Ident>,
@@ -142,7 +142,7 @@ impl GraphQLClientCodegenOptions {
         self.module_visibility = Some(visibility);
     }
 
-    /// The name of implemention target struct.
+    /// The name of implementation target struct.
     pub fn set_struct_name(&mut self, struct_name: String) {
         self.struct_name = Some(struct_name);
     }