docs: Installation Option 1 with prebuilt binaries is the RECOMMEND…

…ED installation option

- all applicable features activated
- CPU optimiztions enabled
- self-update feature only works on prebuilt binaries

[skip ci]

README.md

@@ -135,7 +135,7 @@ yay -S qsv
 sudo xbps-install qsv
 ```
 
-### Option 1: Download Prebuilt Binaries
+### Option 1: Download Prebuilt Binaries (RECOMMENDED)
 
 Full-featured prebuilt [binary variants](#variants) of the latest qsv version for Linux, macOS & Windows are available [for download](https://github.com/jqnatividad/qsv/releases/latest), including binaries compiled with [Rust Nightly](https://stackoverflow.com/questions/70745970/rust-nightly-vs-beta-version) ([more info](https://github.com/jqnatividad/qsv/blob/master/docs/PERFORMANCE.md#nightly-release-builds)).