chore: update README.md

Author: matheusccastroo

README.md

@@ -25,6 +25,9 @@ Run your eslint task like: `METEOR_ESLINT_PLUGIN_DEBUG=1 eslint .`
 ## Options
 
 - Env var `METEOR_ESLINT_PLUGIN_EXPIRES_CACHE_IN_SECONDS`: default is `5`. You can customize the cache expiration time in seconds.
+- Env var `METEOR_ESLINT_PLUGIN_DEBUG`: default is disabled. You can pass this to enable debug mode and see more logs.
+- Env var `METEOR_ESLINT_PLUGIN_IGNORE_CACHE`: default is false. You can pass this to ignore the cache.
+- Env var `METEOR_ESLINT_PLUGIN_FILES`: use this if you want to lint a specific file.
 
 ## Changelog