Fix formatting in quick-start-cli.md

Update formatting to use numbered lists instead of headings for single commands.

Author: Amanda Butler

docs/tutorials/quickstart/quick-start-cli.md

@@ -139,25 +139,25 @@ ARM_PATH=<path to ARM bin\>
 
 ## Code
 
-### 1. Get the code
+1. Get the code
 
-From your command-line, import the example:
+   From your command-line, import the example:
 
-```console
-$ mbed import https://github.com/ARMmbed/mbed-os-quick-start-blinky
-$ cd mbed-os-quick-start-blinky
-```
+   ```console
+   $ mbed import https://github.com/ARMmbed/mbed-os-quick-start-blinky
+   $ cd mbed-os-quick-start-blinky
+   ```
 
-### 2. Compile and program board
+1. Compile and program board
 
-Invoke `mbed compile`, and specify the name of your platform and your installed toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the K64F platform and Arm Compiler 5 toolchain:
+   Invoke `mbed compile`, and specify the name of your platform and your installed toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the K64F platform and Arm Compiler 5 toolchain:
 
-```console
-$ mbed compile --target K64F --toolchain ARM --flash
-```  
+   ```console
+   $ mbed compile --target K64F --toolchain ARM --flash
+   ```  
 
-The `--flash` argument automatically flashes the compiled program onto your board if it is connected to your computer. You can see which boards are connected with `mbed detect`.
+   The `--flash` argument automatically flashes the compiled program onto your board if it is connected to your computer. You can see which boards are connected with `mbed detect`.
 
-After you have flashed the program to the board, press the board's reset button. The LED blinks.
+   After you have flashed the program to the board, press the board's reset button. The LED blinks.
 
-<span class="notes">**Note:** You can get the name of the board plugged into your computer by running `mbed detect`, and you can get a full list of supported toolchains and targets by running the `mbed compile --supported` command.</span>
+   <span class="notes">**Note:** You can get the name of the board plugged into your computer by running `mbed detect`, and you can get a full list of supported toolchains and targets by running the `mbed compile --supported` command.</span>