Update dfx-deps.mdx (#4037)

Author: jessiemongeon1

docs/cli-reference/dfx-deps.mdx

@@ -6,6 +6,8 @@ import { MarkdownChipRow } from "/src/components/Chip/MarkdownChipRow";
 
 Use the `dfx deps` command with flags and subcommands to pull dependencies from the mainnet and deploy locally.
 
+[Learn how to configure a canister as `pullable`](https://internetcomputer.org/docs/current/developer-docs/smart-contracts/maintain/import).
+
 The basic syntax for running `dfx deps` commands is:
 
 ``` bash