Fix grammatical error in intro.rst (#9316)

(cherry picked from commit 1fc1aafbc4bd5bc85289699c0de1d82cb6cbc2d3)

diff --git a/doc/build/intro.rst b/doc/build/intro.rst
index 2d8ac407dea96ea0cf205df4c40cabe0f17d7e48..02a546a86e1837acf1af37182bd6c8e5cd6072d5 100644 (file)
--- a/doc/build/intro.rst
+++ b/doc/build/intro.rst
@@ -22,7 +22,7 @@ Core contains the breadth of SQLAlchemy's SQL and database
 integration and description services, the most prominent part of this
 being the **SQL Expression Language**.
 
-The SQL Expression Language is a toolkit all its own, independent of the ORM
+The SQL Expression Language is a toolkit on its own, independent of the ORM
 package, which provides a system of constructing SQL expressions represented by
 composable objects, which can then be "executed" against a target database
 within the scope of a specific transaction, returning a result set.