change instructions to use provided desktop file

Author: sgpthomas

README.md

@@ -78,22 +78,20 @@ If you're installing the tools on your own machine instead the VM, you can
 The following instructions assume you're using the VM:
 
 1. Log in to the VM with the username `vagrant` and the password `vagrant`.
-2. The desktop should have a file named: `Xilinx_Unified_2019.2_1106_2127_Lin64.bin`.
-3. Right-click on the Desktop and select `Open Terminal Here` and type following command to start the GUI installer:
-   `sudo ./Xilinx_Unified_2019.2_1106_2127_Lin64.bin`
-4. Ignore the warning and press `Ok`.
-5. When the box pops up asking you for a new version, click `Continue`.
-6. Enter your Xilinx credentials. If you don't have them, [create a Xilinx account][xilinx-account].
-    1. **Note**: When you create an account, you need to fill out all the required information on [your profile][xilinx-profile].
-       Otherwise [the Xilinx installer will reject your login](xilinx-fill-account).
-    2. The "User ID" is the email address of the Xilinx account you created.
-7. Agree to the contract and press `Next`.
-8. Choose `Vivado` and click `Next`.
-9. Choose `Vivado HL WebPACK` and click `Next`.
-10. Leave the defaults for selecting devices and click `Next`.
-11. **Important!** Change the install path from `/tools/Xilinx` to `/home/vagrant/Xilinx`.
-12. Confirm that you want to create the directory.
-13. Install.  Depending on the speed of your connection, the whole process
+2. The desktop should have a file named: `Xilinx Installer`. Double click on this to launch the installer.
+3. Ignore the warning and press `Ok`.
+4. When the box pops up asking you for a new version, click `Continue`.
+5. Enter your Xilinx credentials. If you don't have them, [create a Xilinx account][xilinx-account].
+  - **Note** When you create an account, you need to fill out all the required information on [your profile][xilinx-profile].
+  Otherwise [the Xilinx installer will reject your login](xilinx-fill-account).
+  - The "User ID" is the email address of the Xilinx account you created.
+6. Agree to the contract and press `Next`.
+7. Choose `Vivado` and click `Next`.
+8. Choose `Vivado HL WebPACK` and click `Next`.
+9. Leave the defaults for selecting devices and click `Next`.
+10. **Important!** Change the install path from `/tools/Xilinx` to `/home/vagrant/Xilinx`.
+11. Confirm that you want to create the directory.
+12. Install.  Depending on the speed of your connection, the whole process
     should take about 2 - 4 hrs.