Update lazy.md

docs/en/database_engines/lazy.md

 # Lazy
 
-Works like `Ordinary`, but keeps tables in RAM only `expiration_time_in_seconds` seconds after last access. Can be used only with \*Log tables.
+Keeps tables in RAM only `expiration_time_in_seconds` seconds after last access. Can be used only with \*Log tables.
 
 It's optimized for storing many small \*Log tables, for which there is a long time interval between accesses.