Relocate configs above Marlin/src folder (#13299)

config/examples/delta/Anycubic/Kossel/README.md

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+# Readme
+
+These configurations activate many of the new advanced features of the Marlin firmware:
+
+ * Auto Calibration
+ * Auto Bed Leveling
+ * Pause & Filament Change
+
+**Important**: Before doing anything else after updating the firmware, go to `Configuration > Advanced Settings > Initialize EEPROM` to get rid of old configurations.
+
+Then you should execute `Configuration > Delta Calibration > Set Delta Height` and also run `Configuration > Delta Configuration > Probe Z-offset` to verify the Probe offset.
+
+After that you should connect the Z-Probe and start `Configuration > Delta Calibration > Auto Calibration`. When it's done don't forget to also do `Configuration > Delta Calibration > Store Settings` to make it permanent.
+
+You should also do a `Motion > Bed Leveling > Level bed` followed by `Store Settings` to ensure a perfect leveling.
+
+Please do a manual paper test (moving the nozzle slowly down to Z0 and checking with a piece of paper). If it's not perfect, use `Configuration > Advanced Settings > Probe Z Offset` to correct the difference and execute the calibration again.
+
+
+# Select the Configuration
+
+**Please select the correct values at the start of the Configuration.h file**
+
+The Kossel comes in 3 versions:
+
+ * Pulley
+ * Linear
+ * Linear Plus
+
+Pulley and Linear use the same configuration, the Linear Plus is bigger and uses slightly different configurations.
+
+Typically the probes for the Anycubic Delta Kossel printers come in two different versions.
+
+  * Version 1: Z Probe Offset of -19.0mm
+
+    ![Version 1 Probe](images/Version1Probe.jpg)
+
+  * Version 2: Z Probe Offset of -16.8mm
+
+    ![Version 2 Probe](images/Version2Probe.jpg)
+
+If you select the `ANYCUBIC_PROBE_VERSION 0`: It's very important to follow the correct procedure to set it up after flashing the firmware, otherwise you might damage the printer by ramming the nozzle into the buildplate:
+
+* `Configuration > Advanced Settings > Initialize EEPROM`
+* `Motion > Move Axis > Soft Endstops` : `Off`
+* Auto Home and slowly move the nozzle down until it barely touches the bed. (Do a paper-test: A normal sheet of paper should just feel the drag of the nozzle) and note this number.
+* Subtract this number from the value in `Configuration > Delta Calibration > Delta Settings > Height`. (If it's negative, add it).
+* Save and try the paper test again to verify your height.
+* `Configuration > Store Settings`
+* Motion > Bed Leveling (using paper test)

config/examples/delta/MKS/SBASE/RRD Full Graphic Smart Controller.md

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+### RepRap Discount Full Graphics Smart Controller
+
+Many MKS products have the EXP1 & EXP2 LCD connectors rotated 180 degrees from the ones on the RepRap LCD controllers. So there are three options for connecting the RepRap Discount Full Graphic Smart Controller:
+  1. Slice, file, or grind the key off one end of the cables and plug the cables in backwards.
+  2. Carefully pry the plastic housings off the board or controller, rotate them 180 degrees, and press them back onto the board.
+  3. Make custom cables with one end's connector rotated 180 degrees.
+
+---
+
+#### 3 DEC 2017
+
+The current Marlin 2.0.x firmware can't access some of the pins on the EXP2 connector. A custom cable that gets three of the signals from a different connector is required to use the RepRap Discount Full Graphic Smart Controller. Use that cable to move the following connections:
+
+From|To
+--|--
+`P0.8`|`J8-3`
+`P0.7`|`J8-2`
+`P0.5`|`J8-4`
+
+If using pins other than the J8 pins listed above the `spi_pins.h` file will need to be modified.
+
+An octopus cable like the [Adafruit 1199](https://www.adafruit.com/product/1199) 10-pin IDC Socket Rainbow Breakout Cable can simplify the construction of the custom cable. Just plug the Adafruit 1199 into one of the cables that came with the LCD and the individual pins into J8 and EXP2 as needed.
+
+---
+
+#### 27 APR 2018
+
+For a functional `SD_DETECT_PIN`, also move the following pin:
+
+From|To
+--|--
+`P0.27`|`J8-5`
+
+If a different pin is used, modify the `pins_MKS_SBASE.h` file.

config/examples/delta/kossel_pro/README.md

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+# Example Configuration for OpenBeam Kossel Pro [BRAINWAVE_PRO](http://www.openbeamusa.com/3d-printers/kossel/)
+* Configuration files for the **Openbeam Kossel Pro** as delivered in their KickStarter distribution
+
+I [@Wackerbarth](https://github.com/Wackerbarth) tested this version on my Kossel Pro and Arduino 1.6.5 for Mac.
+This configuration is a transition to merge Terence Tam's configuration with up-to-date Marlin source and a current Arduino IDE

config/examples/delta/kossel_xl/README.md

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+# Configuration for Kossel k800 XL
+This example configuration is for a Kossel XL with a printable bed diameter of 280mm and a height of 380mm. It also has the auto bed leveling probe (with an endstop switch) and the heated bed activated.
+
+## Configuration
+You might need (or want) to edit at least the following settings in `Configuration.h`:
+* `MANUAL_Z_HOME_POS` - The available height of your printing space. Auto Bed Leveling makes it less important to have the exact value.
+* `DELTA_PRINTABLE_RADIUS` - The printable radius is how far from the center the nozzle can reach.
+* `DEFAULT_AXIS_STEPS_PER_UNIT` - Steps-per-millimeter for the delta steppers, and for the extruder [to optimize the amount of filament flow](http://zennmaster.com/makingstuff/reprap-101-calibrating-your-extruder-part-1-e-steps).
+
+### Fine tuning
+* Increase `DELTA_RADIUS` if the model comes out convex (with a bulge in the middle)
+* Increase `DELTA_DIAGONAL_ROD` if the model comes out larger than expected
+
+### [http://reprap.org/wiki/PID_Tuning](PID Tuning)
+* `DEFAULT_Kp` - The proportional term
+* `DEFAULT_Ki` - The integral term
+* `DEFAULT_Kd` - The derivative term
+
+### PSU Options
+* The power supply is configured to 2 (to use a relay to switch 12V on and off)
+* It is configured to be off by default