cargo-locate-project: add page (#10999)

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Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

---------

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/cargo-locate-project.md

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+# cargo locate-project
+
+> Print the full path to the `Cargo.toml` manifest of the current project.
+> If the project is part of a workspace, the manifest of the project is shown, rather than that of the workspace.
+> More information: <https://doc.rust-lang.org/cargo/commands/cargo-locate-project.html>.
+
+- Print the JSON object to `stdout` with full path to the `Cargo.toml` manifest:
+
+`cargo locate-project`
+
+- Print the project path in the specified format:
+
+`cargo locate-project --message-format {{plain|json}}`
+
+- Print the `Cargo.toml` manifest located at the given path:
+
+`cargo locate-project --manifest-path {{path/to/Cargo.toml}}`
+
+- Print the `Cargo.toml` manifest located at the root of the workspace as opposed to the current workspace member:
+
+`cargo locate-project --workspace`