🎨 General cleanup, comments

Marlin/src/module/probe.h

@@ -188,6 +188,15 @@ public:
       }
     #endif
 
+    /**
+     * The nozzle is only able to move within the physical bounds of the machine.
+     * If the PROBE has an OFFSET Marlin may need to apply additional limits so
+     * the probe can be prevented from going to unreachable points.
+     *
+     * e.g., If the PROBE is to the LEFT of the NOZZLE, it will be limited in how
+     * close it can get the RIGHT edge of the bed (unless the nozzle is able move
+     * far enough past the right edge).
+     */
     static constexpr float _min_x(const xy_pos_t &probe_offset_xy=offset_xy) {
       return TERN(IS_KINEMATIC,
         (X_CENTER) - probe_radius(probe_offset_xy),