[Keyboard] move @obosob 's boards into obosob/ (#15799)

keyboards/obosob/arch_36/readme.md

@@ -7,10 +7,10 @@ An ergonomic 30% split keyboard
 
 Make example for this keyboard (after setting up your build environment):
 
-    make arch_36:default
+    make obosob/arch_36:default
 
 Example of flashing this keyboard:
 
-    make arch_36:default:flash
+    make obosob/arch_36:default:flash
 
 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/obosob/steal_this_keyboard/readme.md

@@ -6,6 +6,6 @@ A split 34 keys column staggered keyboard named and decorated after the System o
 
 Make examples for this keyboard (after setting up your build environment):
 
-    make steal_this_keyboard:default
+    make obosob/steal_this_keyboard: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).