Update examples for min PA

[TMRh20]

Update examples per #210

With commit nRF24/RF24@8ad2886 we can set the PA Level to min at the RF24Mesh layer for testing and power supply related issues.

[github-actions]

Memory usage change @ 3f3ca95

Board	flash	%	RAM for global variables	%
arduino:avr:nano	🔺 0 - +64	0.0 - +0.21	0 - 0	0.0 - 0.0
arduino:samd:mkrzero	🔺 0 - +68	0.0 - +0.03	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/RF24Mesh_Example flash	%	examples/RF24Mesh_Example RAM for global variables	%	examples/RF24Mesh_Example_Master_Statics flash	%	examples/RF24Mesh_Example_Master_Statics RAM for global variables	%	examples/RF24Mesh_Example_Master_To_Nodes flash	%	examples/RF24Mesh_Example_Master_To_Nodes RAM for global variables	%	examples/RF24Mesh_Example_Node2Node flash	%	examples/RF24Mesh_Example_Node2Node RAM for global variables	%	examples/RF24Mesh_Example_Node2NodeExtra flash	%	examples/RF24Mesh_Example_Node2NodeExtra RAM for global variables	%	examples/RF24Mesh_SerialConfig flash	%	examples/RF24Mesh_SerialConfig RAM for global variables	%	examples/RF24Mesh_Example_Master flash	%	examples/RF24Mesh_Example_Master RAM for global variables	%
arduino:avr:nano	64	0.21	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	18	0.06	0	0.0
arduino:samd:mkrzero	60	0.02	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	68	0.03	0	0.0

Click for full report CSV

Board,examples/RF24Mesh_Example<br>flash,%,examples/RF24Mesh_Example<br>RAM for global variables,%,examples/RF24Mesh_Example_Master_Statics<br>flash,%,examples/RF24Mesh_Example_Master_Statics<br>RAM for global variables,%,examples/RF24Mesh_Example_Master_To_Nodes<br>flash,%,examples/RF24Mesh_Example_Master_To_Nodes<br>RAM for global variables,%,examples/RF24Mesh_Example_Node2Node<br>flash,%,examples/RF24Mesh_Example_Node2Node<br>RAM for global variables,%,examples/RF24Mesh_Example_Node2NodeExtra<br>flash,%,examples/RF24Mesh_Example_Node2NodeExtra<br>RAM for global variables,%,examples/RF24Mesh_SerialConfig<br>flash,%,examples/RF24Mesh_SerialConfig<br>RAM for global variables,%,examples/RF24Mesh_Example_Master<br>flash,%,examples/RF24Mesh_Example_Master<br>RAM for global variables,%
arduino:avr:nano,64,0.21,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,18,0.06,0,0.0
arduino:samd:mkrzero,60,0.02,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,68,0.03,0,0.0

[2bndy5]

I know we're not using a python linter, but I noticed some missing spaces.