[Keyboard] relocating boards by flehrad (#9635)

Co-authored-by: flehrad <flehrad@users.noreply.github.com>

keyboards/flehrad/bigswitch/README.md

@@ -7,6 +7,8 @@ Designed by Don of the Board Podcast and sold as a kit by [keeb.io](https://keeb
 
 https://github.com/flehrad/Big-Switch-PCB
 
+make: flehrad/bigswitch:default
+
 ### Technical Specifications
 
  * Uses a atmega32u4 pro micro or pin compatible MCU

keyboards/flehrad/downbubble/readme.md

@@ -10,6 +10,6 @@ Hardware Availability: The Board Podcast Slack
 
 Make example for this keyboard (after setting up your build environment):
 
-    make downbubble:default
+    make flehrad/downbubble:default
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

keyboards/flehrad/numbrero/readme.md

@@ -8,6 +8,6 @@ Hardware Availability: The Board Podcast Slack
 
 Make example for this keyboard (after setting up your build environment):
 
-    make handwired/numbrero:default
+    make flehrad/numbrero:default
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

keyboards/flehrad/snagpad/readme.md

@@ -8,7 +8,7 @@ Hardware Availability: [GitHub](https://github.com/flehrad/Snagpad)
 
 Make example for this keyboard (after setting up your build environment):
 
-    make snagpad:default
+    make flehrad/snagpad:default
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
 

keyboards/flehrad/tradestation/readme.md

@@ -22,6 +22,6 @@ Hardware Supported: Tradestation PCB, Pro Micro
 
 Make example for this keyboard (after setting up your build environment):
 
-    make tradestation:default
+    make flehrad/tradestation:default
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).