rustup-{set,self,completions,doc,override,component}: add page (#10729)

* rustup set: add page

* rustup self: add page

* rustup completions: add page

* rustup doc: add page

* rustup override: add page

* rustup component: add page

---------

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/rustup-component.md

@@ -0,0 +1,21 @@
+# rustup component
+
+> Modify a toolchain's installed components.
+> Without the `--toolchain` option `rustup` will use the default toolchain. See `rustup help toolchain` for more information about toolchains.
+> More information: <https://rust-lang.github.io/rustup>.
+
+- Add a component to a toolchain:
+
+`rustup component add --toolchain {{toolchain}} {{component}}`
+
+- Remove a component from a toolchain:
+
+`rustup component remove --toolchain {{toolchain}} {{component}}`
+
+- List installed and available components for a toolchain:
+
+`rustup component list --toolchain {{toolchain}}`
+
+- List installed components for a toolchain:
+
+`rustup component list --toolchain {{toolchain}} --installed`