Add missing ARRAY_NAME to bin2c example

Bumps the submodules group with 2 updates: [bgfx](https://github.com/bkaradzic/bgfx) and [bx](https://github.com/bkaradzic/bx).


Updates `bgfx` from `e7e75e4` to `e2c5b1d`
- [Commits](e7e75e4bff...e2c5b1d3e1)

Updates `bx` from `7ac95d5` to `96748d9`
- [Commits](7ac95d5131...96748d9a58)

---
updated-dependencies:
- dependency-name: bgfx
  dependency-type: direct:production
  dependency-group: submodules
- dependency-name: bx
  dependency-type: direct:production
  dependency-group: submodules
...

Signed-off-by: dependabot[bot] <support@github.com>

README.md

@@ -48,8 +48,9 @@ Adding these `INPUT_FILE` as source files to a target will run `bin2c` at build
 #### Examples: Generating an image as a header
 ```cmake
 bgfx_compile_binary_to_header(
-  INPUT_FILE image.png
+  INPUT_FILE ${CMAKE_CURRENT_SOURCE_DIR}/image.png
   OUTPUT_FILE ${CMAKE_BINARY_DIR}/include/generated/images/image.png.h
+  ARRAY_NAME image_bytes
 )
 add_library(myLib image.png)
 target_include_directories(myLib ${CMAKE_BINARY_DIR}/include/generated/images)
@@ -58,6 +59,7 @@ target_include_directories(myLib ${CMAKE_BINARY_DIR}/include/generated/images)
 ```cpp
 // main.cpp
 #include <image.png.h>
+// You now have access to a static const uint8_t or char array named image_bytes
 ```
 
 ### `bgfx_compile_texture`