doc/index: regroup hubs by platform

Make it easier to pick the right installation guide.

doc/api/diagram_source/hubs.ldr

@@ -1,11 +1,14 @@
-0 Name: pupmotors
+0 Name: hubs.ldr
 0 Author: Pybricks {laurens@pybricks.com}
 0 !LICENSE MIT
-1 15 -420 -56 -250 1 0 0 0 1 0 0 0 1 26910.dat
-1 15 10 -80 140 1 0 0 0 1 0 0 0 1 28738.dat
-1 71 -270 -40 630 1 0 0 0 1 0 0 0 1 22127.dat
-1 15 200 -96 600 -1 0 0 0 1 0 0 0 -1 28739.dat
-1 15 470 -16 -90 1 0 0 0 1 0 0 0 1 45601p02.dat
-1 15 -800 -40 360 1 0 0 0 1 0 0 0 1 95646c01.dat
-1 15 -1160 32 -310 1 0 0 0 1 0 0 0 1 53788c01.dat
-1 71 -1340 -40 430 1 0 0 0 1 0 0 0 1 87576c01.dat
+0 ROTATION CENTER 0 0 0 1 "Custom" 
+0 ROTATION CONFIG 0 0
+1 15 -20 -56 320 1 0 0 0 1 0 0 0 1 26910.dat
+1 15 -330 -80 110 0 0 1 0 1 0 -1 0 0 28738.dat
+1 71 -310 -40 390 1 0 0 0 1 0 0 0 1 22127.dat
+1 15 260 -16 90 1 0 0 0 1 0 0 0 1 45601p02.dat
+1 3 440 -16 10 1 0 0 0 1 0 0 0 1 45601c01.dat
+1 3 780 -16 -310 1 0 0 0 1 0 0 0 1 45601c01.dat
+1 15 -930 -40 360 1 0 0 0 1 0 0 0 1 95646c01.dat
+1 15 -1490 32 350 1 0 0 0 1 0 0 0 1 53788c01.dat
+0

doc/api/index.rst

@@ -7,28 +7,24 @@ run your first scripts.
 
 **Step 1: Install Pybricks**
 
-To get started, go to the :doc:`EV3 Quick Start <start_ev3>`
-or the :doc:`Powered Up Quick Start <start_pup>` or pick your hub
-below.
+Pybricks scripts are the same across all hubs. The only difference is in how
+you install Pybricks and how you run scripts. To get started, click one of
+the platforms below.
 
 .. list-table::
 
-   * - **EV3 Brick**
-     - **Move Hub**
-     - **City Hub**
-     - **Technic Hub**
+   * - **MINDSTORMS EV3**
+     - **Powered Up (Technic/City/BOOST)**
+     - **SPIKE / MINDSTORMS Inventor**
 
    * - .. image:: images/ev3brick.png
          :target: start_ev3.html
 
-     - .. figure:: images/movehub.png
+     - .. figure:: images/powereduphubs.png
          :target: start_pup.html
 
-     - .. figure:: images/cityhub.png
-         :target: start_pup.html
-
-     - .. figure:: images/technichub.png
-          :target: start_pup.html
+     - .. figure:: images/primeinventorhub.png
+          :target: start_inventor.html
 
 
 **Step 2: Start coding!**