dolt-sql: add page (#8792)

pages/common/dolt-sql.md

@@ -0,0 +1,12 @@
+# dolt sql
+
+> Run a SQL query. Multiple SQL statements must be separated by semicolons.
+> More information: <https://docs.dolthub.com/cli-reference/cli#dolt-sql>.
+
+- Run a single query:
+
+`dolt sql --query "{{INSERT INTO t values (1, 3);}}"`
+
+- List all saved queries:
+
+`dolt sql --list-saved`