AT101 Blackheart: readme update

- added image
- updated Docs links

keyboards/at101_blackheart/readme.md

@@ -1,5 +1,6 @@
-AT101 Blackheart PCB
-===
+# AT101 Blackheart PCB
+
+![AT101 Blackheart PCB](https://deskthority.net/resources/image/48571)
 
 A replacement PCB for AT101 keyboards.
 
@@ -11,4 +12,4 @@ Make example for this keyboard (after setting up your build environment):
 
     make at101_blackheart:default
 
-See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.
+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).