Update SearchBar help text (#229)

amundsen_application/static/js/components/SearchPage/SearchBar/constants.ts

@@ -4,7 +4,7 @@ export const ERROR_CLASSNAME = 'error';
 export const PLACEHOLDER_DEFAULT = 'search for data resources...';
 
 export const SUBTEXT_DEFAULT = `Search within a category using the pattern with wildcard support 'category:*searchTerm*', e.g. 'schema:*core*'.
-  Current categories are 'column', 'schema', 'table', and 'tag'.`;
+  Current categories are 'column', 'database', 'schema', 'table', and 'tag'.`;
 export const SYNTAX_ERROR_CATEGORY = `Advanced search syntax only supports searching one category. Please remove all extra ':'`;
 export const SYNTAX_ERROR_PREFIX = 'Did you mean ';
 export const SYNTAX_ERROR_SPACING_SUFFIX = ` ? Please remove the space around the ':'.`;