MLECO-1881: Fix MPS3 board image
MLECO-1879: Revise OSS quick start guide (setuptools update)

Signed-off-by: Isabella Gottardi <isabella.gottardi@arm.com>
Change-Id: I450d54226e3d606312a94c2ba1cb6d41873d2b48
diff --git a/docs/media/mps3.png b/docs/media/mps3.png
index 3fb0dff..ff0e48e 100644
--- a/docs/media/mps3.png
+++ b/docs/media/mps3.png
Binary files differ
diff --git a/docs/quick_start.md b/docs/quick_start.md
index f557c72..5595152 100644
--- a/docs/quick_start.md
+++ b/docs/quick_start.md
@@ -40,6 +40,7 @@
     python3 -m venv env
     source ./env/bin/activate
     pip install --upgrade pip
+    pip install --upgrade setuptools
     pip install ethos-u-vela
     ```