docs: capitalize proper noun Git (#9196)

docs/usage/rust.md

@@ -19,9 +19,9 @@ Renovate supports upgrading dependencies in `Cargo.toml` files and their accompa
 
 Renovate updates Rust crates by default.
 
-## Private crate registries and private git dependencies
+## Private crate registries and private Git dependencies
 
-If any dependencies are hosted in private git repositories, [Git Authentication for cargo](https://doc.rust-lang.org/cargo/appendix/git-authentication.html) must be set up.
+If any dependencies are hosted in private Git repositories, [Git Authentication for cargo](https://doc.rust-lang.org/cargo/appendix/git-authentication.html) must be set up.
 
 If any dependencies are hosted on private crate registries (ie., not on `crates.io`), then credentials should be set up in such a way that the Git command-line is able to clone the registry index.
 Third-party crate registries usually provide instructions to achieve this.

lib/datasource/readme.md

@@ -22,7 +22,7 @@ The config contains:
 
 ## getDigest
 
-Datasources that support the concept of digests (e.g. docker digests and git commit hashes) also can export a `getDigest` function.
+Datasources that support the concept of digests (e.g. docker digests and Git commit hashes) also can export a `getDigest` function.
 
 The `getDigest` function has two inputs:
 

lib/manager/git-submodules/readme.md

-Keeps git submodules updated within a repository.
+Keeps Git submodules updated within a repository.

lib/versioning/git/readme.md

-Renovate's git versioning is a kind of hack to support git submodule updating.
+Renovate's Git versioning is a kind of hack to support Git submodule updating.