Fix some typo in runtime and snapshots

Signed-off-by: Xiaodong Zhang <a4012017@sina.com>

runtime/v2/shim.go

@@ -66,7 +66,7 @@ func loadShim(ctx context.Context, bundle *Bundle, events *exchange.Exchange, rt
 		}
 	}()
 	// open the log pipe and block until the writer is ready
-	// this helps with syncronization of the shim
+	// this helps with synchronization of the shim
 	// copy the shim's logs to containerd's output
 	go func() {
 		defer f.Close()