1 files changed, 4 insertions, 5 deletions

diff --git a/README.md b/README.md
index 0397621a..7f0b7d5f 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Shaarli, the personal, minimalist, super-fast, no-database delicious clone.
 You want to share the links you discover ? Shaarli is a minimalist delicious clone you can install on your own website.
 It is designed to be personal (single-user), fast and handy.
 
-[![Join the chat at https://gitter.im/shaarli/Shaarli](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/shaarli/Shaarli?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Join the chat at https://gitter.im/shaarli/Shaarli](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/shaarli/Shaarli) [![Bountysource](https://www.bountysource.com/badge/team?team_id=19583&style=bounties_received)](https://www.bountysource.com/teams/shaarli/issues)
 
 ## Features:
 
@@ -51,7 +51,7 @@ It is designed to be personal (single-user), fast and handy.
 
 ## Installing
 
-Shaarli requires php 5.1
+Shaarli requires php 5.1. `php-gd` is optional and provides thumbnail resizing.
 
  * Download the latest stable release from https://github.com/shaarli/Shaarli/releases
  * Unpack the archive in a directory on your web server
@@ -63,9 +63,8 @@ _To get the development version, download https://github.com/shaarli/Shaarli/arc
 
 ## Upgrading
 
-Delete all files and directories except the `data` directory, then unzip the new version of Shaarli.  
-You will not lose your links and you will not have to reconfigure it.
-
+ * **If you installed from the zip:** Delete all files and directories except the `data` directory, then unzip the new version of Shaarli.  You will not lose your links and you will not have to reconfigure it.
+ * **If you installed using `git clone`**: run `git pull` in your Shaarli directory.
 
 
 ## About