Update README.md

quad/README.md

@@ -16,7 +16,7 @@ implementation the "virtual quad". This is done in `src/virt_quad`.
 
 ## Building
 
-### Primarily Libraries and Executables
+#### Primarily Libraries and Executables
 
 To build the libraries and executables:
 ```
@@ -32,14 +32,14 @@ cd src/<project> && make
 **NOTE**: All build artifacts will be placed in `quad/lib` or `quad/bin`
 (depending on whether it is a library or executable, respectively)
 
-### XSDK Project (what runs on the Zybo)
+#### XSDK Project (what runs on the Zybo)
 To build the XSDK project, use the XSDK IDE. Refer to the [Xilinx How-to](doc/how_to_use_xilinx_tools.pdf)
 for more instructions. Be sure to select the `xsdk_workspace` directory in the
 quad directory as your "workspace."
 
 ## Testing
 
-### Automated Tests
+#### Automated Tests
 _Write tests! It makes automating things so much easier._
 
 Run the unit and functional tests:
@@ -50,7 +50,7 @@ make test
 And glad to hear you are interested in writing your own unit tests! Look at the
 README and examples in our simple testing library at `src/test`.
 
-### Manually testing the hardware interface
+#### Manually testing the hardware interface
 
 Of course, we cannot run automated tests on code that needs the Zybo. But
 we have manual tests that you can use to test each specific driver in the