docs: Add documentation for probe_eddy_current

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

docs/Config_Reference.md

@@ -1995,6 +1995,40 @@ z_offset:
 #   See the "probe" section for more information on the parameters above.
 ```
 
+### [probe_eddy_current]
+
+Support for eddy current inductive probes. One may define this section
+(instead of a probe section) to enable this probe. See the
+[command reference](G-Codes.md#probe_eddy_current) for further information.
+
+```
+[probe_eddy_current my_eddy_probe]
+sensor_type: ldc1612
+#   The sensor chip used to perform eddy current measurements. This
+#   parameter must be provided and must be set to ldc1612.
+#z_offset:
+#   The nominal distance (in mm) between the nozzle and bed that a
+#   probing attempt should stop at. This parameter must be provided.
+#i2c_address:
+#i2c_mcu:
+#i2c_bus:
+#i2c_software_scl_pin:
+#i2c_software_sda_pin:
+#i2c_speed:
+#   The i2c settings for the sensor chip. See the "common I2C
+#   settings" section for a description of the above parameters.
+#x_offset:
+#y_offset:
+#speed:
+#lift_speed:
+#samples:
+#sample_retract_dist:
+#samples_result:
+#samples_tolerance:
+#samples_tolerance_retries:
+#   See the "probe" section for information on these parameters.
+```
+
 ### [axis_twist_compensation]
 
 A tool to compensate for inaccurate probe readings due to twist in X gantry. See