Dependencies doc is not accurate.

Trident repo does not currently build with the latest stable rust toolchain:

```
error: struct `LuksDump` is never constructed
--> crates/trident/src/engine/storage/encryption.rs:289:8
|
289 | struct LuksDump {
| ^^^^^^^^
|
= note: `-D dead-code` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(dead_code)]`

error: struct `LuksDumpSegment` is never constructed
--> crates/trident/src/engine/storage/encryption.rs:298:8
|
298 | struct LuksDumpSegment {
| ^^^^^^^^^^^^^^^

error: enum `RaidState` is never used
--> crates/trident/src/engine/storage/raid.rs:29:17
|
29 | pub(super) enum RaidState {
| ^^^^^^^^^

error: method `complete_reader` is never used
--> crates/trident/src/io_utils/file_reader.rs:122:19
|
51 | impl FileReader {
| --------------- method in this implementation
...
122 | pub(crate) fn complete_reader(&self) -> I...
| ^^^^^^^^^^^^^^^

error: constant `EXTENSION_RELEASE` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:32:7
|
32 | const EXTENSION_RELEASE: &str = "extension-rel...
| ^^^^^^^^^^^^^^^^^

error: constant `SYSEXT_EXTENSION_RELEASE_DIRECTORY` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:35:7
|
35 | const SYSEXT_EXTENSION_RELEASE_DIRECTORY: &str...
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: constant `CONFEXT_EXTENSION_RELEASE_DIRECTORY` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:37:7
|
37 | const CONFEXT_EXTENSION_RELEASE_DIRECTORY: &st...
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: constant `EXTENSION_IMAGE_STAGING_DIRECTORY` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:40:7
|
40 | const EXTENSION_IMAGE_STAGING_DIRECTORY: &str ...
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: struct `ExtensionData` is never constructed
--> crates/trident/src/subsystems/extensions/mod.rs:43:12
|
43 | pub struct ExtensionData {
| ^^^^^^^^^^^^^

error: enum `ExtensionType` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:69:10
|
69 | pub enum ExtensionType {
| ^^^^^^^^^^^^^

error: struct `ExtensionsSubsystem` is never constructed
--> crates/trident/src/subsystems/extensions/mod.rs:84:12
|
84 | pub struct ExtensionsSubsystem {
| ^^^^^^^^^^^^^^^^^^^

error: methods `populate_extensions`, `populate_extensions_inner`, `create_directories`, and `set_up_extensions` are never used
--> crates/trident/src/subsystems/extensions/mod.rs:124:8
|
123 | impl ExtensionsSubsystem {
| ------------------------ methods in this implementation
124 | fn populate_extensions(
| ^^^^^^^^^^^^^^^^^^^
...
161 | fn populate_extensions_inner(
| ^^^^^^^^^^^^^^^^^^^^^^^^^
...
271 | fn create_directories(&self, mount_path: ...
| ^^^^^^^^^^^^^^^^^^
...
310 | fn set_up_extensions(
| ^^^^^^^^^^^^^^^^^

error: function `check_for_existing_image` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:407:4
|
407 | fn check_for_existing_image(ext: &Extension, ...
| ^^^^^^^^^^^^^^^^^^^^^^^^

error: function `attach_device_and_mount` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:417:4
|
417 | fn attach_device_and_mount(image_file_path: &...
| ^^^^^^^^^^^^^^^^^^^^^^^

error: function `detach_device_and_unmount` is never used
--> crates/trident/src/subsystems/extensions/mod.rs:452:4
|
452 | fn detach_device_and_unmount(device_path: Str...
| ^^^^^^^^^^^^^^^^^^^^^^^^^

error: constant `EXTENSION_RELEASE_PREFIX` is never used
--> crates/trident/src/subsystems/extensions/release.rs:21:7
|
21 | const EXTENSION_RELEASE_PREFIX: &str = formatc...
| ^^^^^^^^^^^^^^^^^^^^^^^^

error: function `read_extension_release` is never used
--> crates/trident/src/subsystems/extensions/release.rs:24:15
|
24 | pub(crate) fn read_extension_release(
| ^^^^^^^^^^^^^^^^^^^^^^

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/mod.rs:140:38
|
140 | ...em(&self, path: &Path) -> Option {
| ^^^^^ ----------------- the same lifetime is hidden here
| |
| the lifetime is elided here
|
= help: the same lifetime is referred to in inconsistent ways, making the signature confusing
= note: `-D mismatched-lifetime-syntaxes` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(mismatched_lifetime_syntaxes)]`
help: use `'_` for type paths
|
140 | pub(crate) fn path_to_filesystem(&self, path: &Path) -> Option> {
| ++++

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/mod.rs:156:34
|
156 | ...em(&self) -> Result Result, Error> {
| ++++

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/mod.rs:165:31
|
165 | ...ms(&self) -> Box +...
| ^^^^^ the lifetime is elided here ----------------- the same lifetime is hidden here
|
= help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
|
165 | pub(crate) fn filesystems(&self) -> Box> + '_> {
| ++++

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/mod.rs:174:35
|
174 | ...em(&self) -> Option {
| ^^^^^ ----------------- the same lifetime is hidden here
| |
| the lifetime is elided here
|
= help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
|
174 | pub(crate) fn root_filesystem(&self) -> Option> {
| ++++

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/cosi/mod.rs:88:34
|
88 | ...em(&self) -> Result Result, Error> {
| ++++

error: hiding a lifetime that's elided elsewhere is confusing
--> crates/trident/src/osimage/cosi/mod.rs:102:31
|
102 | ...ms(&self) -> impl Iterator {
| ^^^^^ ----------------- the same lifetime is hidden here
| |
| the lifetime is elided here
|
= help: the same lifetime is referred to in inconsistent ways, making the signature confusing
help: use `'_` for type paths
|
102 | pub(super) fn filesystems(&self) -> impl Iterator> {
| ++++

error: could not compile `trident` (lib) due to 23 previous errors
make: *** [Makefile:24: check] Error 101
```

Furthermore, the dependencies is missing instructions for black and .cargo/config.