Fix typos

Author: jpraynaud

mithril-aggregator/src/dependency.rs

@@ -37,7 +37,7 @@ pub struct DependencyManager {
     pub config: Configuration,
 
     /// SQLite database connection
-    /// This is not a real service but is is needed to instanciate all store
+    /// This is not a real service but is is needed to instantiate all store
     /// services. Shall be private dependency.
     pub sqlite_connection: Arc<Mutex<Connection>>,
 

mithril-common/src/database/version_checker.rs

@@ -352,7 +352,7 @@ mod tests {
         db_checker.apply().await.unwrap();
         check_database_version(connection.clone(), 1).await;
 
-        // re instanciate a new checker with no migration registered (version 0).
+        // re instantiate a new checker with no migration registered (version 0).
         let db_checker = DatabaseVersionChecker::new(
             slog_scope::logger(),
             ApplicationNodeType::Aggregator,

mithril-common/src/era/era_reader.rs

@@ -17,7 +17,7 @@ pub struct EraMarker {
 }
 
 impl EraMarker {
-    /// instanciate a new [EraMarker].
+    /// instantiate a new [EraMarker].
     pub fn new(name: &str, epoch: Option<Epoch>) -> Self {
         let name = name.to_string();