Clarify that Trino and Presto are not the same dialect in docs

Refs #620

Author: nene

README.md

@@ -7,7 +7,7 @@
 It started as a port of a [PHP Library][], but has since considerably diverged.
 
 It supports various SQL dialects:
-GCP BigQuery, IBM DB2, Apache Hive, MariaDB, MySQL, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Amazon Redshift, SingleStoreDB, Snowflake, Spark, SQL Server Transact-SQL, Trino/Presto.
+GCP BigQuery, IBM DB2, Apache Hive, MariaDB, MySQL, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Amazon Redshift, SingleStoreDB, Snowflake, Spark, SQL Server Transact-SQL, Trino (and Presto).
 See [language option docs](docs/language.md) for more details.
 
 It does not support:

docs/language.md

@@ -27,7 +27,7 @@ const result = format('SELECT * FROM tbl', { dialect: 'sqlite' });
 - `"spark"` - [Spark][]
 - `"sqlite"` - [SQLite][sqlite]
 - `"transactsql"` or `"tsql"` - [SQL Server Transact-SQL][tsql]
-- `"trino"` - [Trino][] / [Presto][]
+- `"trino"` - [Trino][] (should also work for [Presto][], which is very similar dialect, though technically different)
 
 The default `"sql"` dialect is meant for cases where you don't know which dialect of SQL you're about to format.
 It's not an auto-detection, it just supports a subset of features common enough in many SQL implementations.