docs: Add links to downloads.sqlc.dev (#1681)

* Update README.md

* Update install.md

Author: kyleconroy

README.md

@@ -17,6 +17,7 @@ Check out [an interactive example](https://play.sqlc.dev/) to see it in action.
 - [Installation](https://docs.sqlc.dev/en/latest/overview/install.html)
 - [Playground](https://play.sqlc.dev)
 - [Website](https://sqlc.dev)
+- [Downloads](https://downloads.sqlc.dev/)
 
 ## Sponsors
 

docs/overview/install.md

@@ -53,3 +53,5 @@ Get pre-built binaries for *v1.14.0*:
 - [Linux](https://github.com/kyleconroy/sqlc/releases/download/v1.14.0/sqlc_1.14.0_linux_amd64.tar.gz)
 - [macOS](https://github.com/kyleconroy/sqlc/releases/download/v1.14.0/sqlc_1.14.0_darwin_amd64.zip)
 - [Windows (MySQL only)](https://github.com/kyleconroy/sqlc/releases/download/v1.14.0/sqlc_1.14.0_windows_amd64.zip)
+
+See [downloads.sqlc.dev](https://downloads.sqlc.dev/) for older versions.