Merge pull request #2023 from syphar/renovate-docs-rs

enable renovate bot for docs.rs repo

Author: marcoieni

repos/rust-lang/docs.rs.toml

@@ -2,7 +2,7 @@ org = 'rust-lang'
 name = 'docs.rs'
 description = 'crates.io documentation generator'
 homepage = "https://docs.rs"
-bots = ["rustbot"]
+bots = ["rustbot", "renovate"]
 
 [access.teams]
 docs-rs = 'write'