doc: Move the Installation section up

Author: KSXGitHub

README.md

@@ -35,6 +35,32 @@ The benchmark was generated by [a GitHub Workflow](https://github.com/KSXGitHub/
 
 [![asciicast of pdu command on /usr](https://asciinema.org/a/416664.svg)](https://asciinema.org/a/416664)
 
+## Development
+
+### Prerequisites
+
+* [`cargo`](github.com/rust-lang/cargo).
+
+### Test
+
+```sh
+cargo clippy -- -D warnings && cargo fmt --check && cargo test
+```
+
+### Run
+
+```sh
+./run pdu "${arguments[@]}"
+```
+
+* `"${arguments[@]}"`: List of arguments to pass to `pdu`.
+
+### Update shell completion files
+
+```sh
+./generate-completions.sh
+```
+
 ## Installation
 
 ### Any Desktop OS
@@ -75,32 +101,6 @@ Follow the [installation instruction](https://github.com/KSXGitHub/pacman-repo#i
 sudo pacman -S parallel-disk-usage
 ```
 
-## Development
-
-### Prerequisites
-
-* [`cargo`](github.com/rust-lang/cargo).
-
-### Test
-
-```sh
-cargo clippy -- -D warnings && cargo fmt --check && cargo test
-```
-
-### Run
-
-```sh
-./run pdu "${arguments[@]}"
-```
-
-* `"${arguments[@]}"`: List of arguments to pass to `pdu`.
-
-### Update shell completion files
-
-```sh
-./generate-completions.sh
-```
-
 ## Distributions
 
 [![Packaging Status](https://repology.org/badge/vertical-allrepos/parallel-disk-usage.svg)](https://repology.org/project/parallel-disk-usage/versions)