docs(readme): add install section with release packages link

README.md

-# Castopod
+# ![Castopod Logo](https://podlibre.org/static/images/Castopod-Title.svg)
 
-Castopod is an open-source podcast hosting solution for everyone. Whether you
-are a beginner, an amateur or a professional, you will get everything you need:
-create, upload, publish, manage server subscriptions (WebSub embedded server),
-connect to the usual directories (Apple, Google, Spotify…), connect to the
-Fediverse (ActivityPub, Mastodon, Pleroma…) and measure your audience (IAB 2.0
-compliant) so that you can monetize your content. Take back control: interact
-with your audience on your plateform (like, share, comment), the social network
-IS the podcast. Of course you may also export to proprietary social
-networks(Twitter, Instagram, Youtube, Facebook). Castopod can be hosted on any
-PHP/MySQL server: Unzip it and you and other podcasters are ready to broadcast
-professionally.
+Castopod is an open-source podcast hosting solution for everyone.\
+Whether you are a beginner, an amateur or a professional, you will get everything
+you need:\
+Create, upload, publish, and get comprehensive audience measurement that respects your
+listeners privacy.
 
-## Free
+Castopod is a free and open-source solution (AGPL v3).\
+Whether you choose to install it on your own server or have it hosted by a
+professional, all your data and analytics belong to you and you only.
 
-Castopod is a free and open-source solution (AGPL v3). Whether you choose to
-install it on your own server or have it hosted by a professional, all your data
-and analytics belong to you and you only.
+![Castopod Logo](https://podlibre.org/static/images/Castopod-Mascot-Server.svg)
 
-## Social Media
+## Installation
 
-Castopod is a part of Fediverse (Mastodon, Pleroma, PixelFed, PeerTube…).
-Podcasters and their audience can post, subscribe, like, comment and share
-natively. Millions of users already on Fediverse will be able to interact
-seamlessly.
+Castopod can be hosted on any PHP/MySQL server:\
+Unzip it and you are ready to broadcast.
 
-## Flexible
-
-Castopod is compatible with all Podcasts players and platforms (it can
-automatically generate an RSS feed). Moreover Podcasters can choose to publish
-on Castopod while keeping their existing hosting solution (it can automatically
-generate posts from an existing RSS feed).
-
-![Castopod Users](https://podlibre.org/static/images/Business-31.svg)
-
----
+To install Castopod on your server:
+- Download [Castopod latest Package (zip or tar.gz)](https://code.podlibre.org/podlibre/castopod/-/releases),
+- Follow the procedure “[How to install Castopod](./INSTALL.md)”.
 
 ## Documentation