docs: match install section with website (denoland#9665)

Co-authored-by: Luca Casonato <[email protected]>

Author: kidonng

README.md

@@ -44,10 +44,16 @@ brew install deno
 choco install deno
 ```
 
+[Scoop](https://scoop.sh/) (Windows):
+
+```powershell
+scoop install deno
+```
+
 Build and install from source using [Cargo](https://crates.io/crates/deno):
 
 ```sh
-cargo install deno
+cargo install deno --locked
 ```
 
 See

docs/getting_started/installation.md

@@ -38,10 +38,10 @@ Using [Homebrew](https://formulae.brew.sh/formula/deno) (macOS):
 brew install deno
 ```
 
-Using [Cargo](https://crates.io/crates/deno) (Windows, macOS, Linux):
+Build and install from source using [Cargo](https://crates.io/crates/deno):
 
 ```shell
-cargo install deno
+cargo install deno --locked
 ```
 
 Deno binaries can also be installed manually, by downloading a zip file at