made the link to tuning practice not a subheader

Author: ProfessorAtomicManiac

docs/section-7/feedback-control.md

@@ -78,7 +78,9 @@ In general, the "optimal" PID controller gets the error to zero as fast as possi
 ![PID Tuning Graphs](pid_tuning_graphs.png)
 
 To get those ideal constants... you kind of just guess and check. WPILIB provides a nice simulation of how it is like to tune these constants.
-### [Click here to try tuning a PID Controller. SCROLL TO "PURE FEEDBACK CONTROL", SKIP EVERYTHING ELSE](https://docs.wpilib.org/en/stable/docs/software/advanced-controls/introduction/tuning-flywheel.html)
+
+[Click here to try tuning a PID Controller. SCROLL TO "PURE FEEDBACK CONTROL", SKIP EVERYTHING ELSE](https://docs.wpilib.org/en/stable/docs/software/advanced-controls/introduction/tuning-flywheel.html)
+
 Follow the instructions and see if you can get the optimal tuning solution. The model simulates a flywheel shooter mechanism and halfway through the simulation it shoots a ball. **DO NOT SKIP THIS PRACTICE**
 
 !!! note