docs: Docs comma culture (#4822)

Many non-English speaking countries use a comma as a decimal separator for printed numbers. This can create some confusion in documentation and config files when not surrounded by contextual clues like parenthesis.  Improve documentation by adding spaces to coordinates.

Signed-off-by: Paul McGowan <mental450@gmail.com>

config/sample-probe-as-z-endstop.cfg

@@ -21,7 +21,7 @@ position_min: -2 # The Z carriage may need to travel below the Z=0
 
 # The safe_z_home section modifies the default G28 behavior
 [safe_z_home]
-home_xy_position: 100,100
+home_xy_position: 100, 100
 speed: 50
 z_hop: 15
 z_hop_speed: 5
@@ -29,18 +29,18 @@ z_hop_speed: 5
 # Example bed_tilt config section
 [bed_tilt]
 points:
-    100,100
-    10,10
-    10,100
-    10,190
-    100,10
-    100,190
-    190,10
-    190,100
-    190,190
+    100, 100
+    10, 10
+    10, 100
+    10, 190
+    100, 10
+    100, 190
+    190, 10
+    190, 100
+    190, 190
 
 # Example bed_mesh config section
 [bed_mesh]
-mesh_min: 20,20
-mesh_max: 200,200
-probe_count: 4,4
+mesh_min: 20, 20
+mesh_max: 200, 200
+probe_count: 4, 4