docs: improve comments for clarity in module.go, store.go, and memdb.go

core/appmodule/v2/module.go

@@ -23,7 +23,7 @@ type AppModule interface {
 // custom logic before BeginBlock.
 type HasPreBlocker interface {
 	AppModule
-	// PreBlock is method that will be run before BeginBlock.
+	// PreBlock is a method that will be run before BeginBlock.
 	PreBlock(context.Context) error
 }
 
@@ -85,7 +85,7 @@ type HasTxValidator[T transaction.Tx] interface {
 }
 
 // HasUpdateValidators is an extension interface that contains information about the AppModule and UpdateValidators.
-// It can be seen as the alternative of the Cosmos SDK' HasABCIEndBlocker.
+// It can be seen as the alternative of the Cosmos SDK's HasABCIEndBlocker.
 // Both are still supported.
 type HasUpdateValidators interface {
 	AppModule

core/store/store.go

@@ -142,7 +142,7 @@ type ReaderMap interface {
 // WriterMap represents a writable actor state.
 type WriterMap interface {
 	ReaderMap
-	// GetWriter must the return a WritableState
+	// GetWriter must return a WritableState
 	// for the provided actor namespace.
 	GetWriter(actor []byte) (Writer, error)
 	// ApplyStateChanges applies all the state changes

core/testing/memdb.go

@@ -430,7 +430,7 @@ func (b *memDBBatch) Write() error {
 		}
 	}
 
-	// Make sure batch cannot be used afterwards. Callers should still call Close(), for
+	// Make sure batch cannot be used afterwards. Callers should still call Close() for cleanup.
 	return b.Close()
 }