Examples: add backends include path in readmes. (#4106)
diff --git a/examples/example_sdl_opengl2/README.md b/examples/example_sdl_opengl2/README.md
index 0090063..b83ad45 100644
--- a/examples/example_sdl_opengl2/README.md
+++ b/examples/example_sdl_opengl2/README.md
@@ -14,12 +14,12 @@
- On Linux and similar Unixes
```
-c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
```
- On Mac OS X
```
brew install sdl2
-c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
```
diff --git a/examples/example_sdl_opengl3/README.md b/examples/example_sdl_opengl3/README.md
index edeafec..50d6aff 100644
--- a/examples/example_sdl_opengl3/README.md
+++ b/examples/example_sdl_opengl3/README.md
@@ -14,12 +14,12 @@
- On Linux and similar Unixes
```
-c++ `sdl2-config --cflags` -I .. -I ../.. -I ../libs/gl3w main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp ../libs/gl3w/GL/gl3w.c `sdl2-config --libs` -lGL -ldl
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends -I ../libs/gl3w main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp ../libs/gl3w/GL/gl3w.c `sdl2-config --libs` -lGL -ldl
```
- On Mac OS X
```
brew install sdl2
-c++ `sdl2-config --cflags` -I .. -I ../.. -I ../libs/gl3w main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp ../libs/gl3w/GL/gl3w.c `sdl2-config --libs` -framework OpenGl -framework CoreFoundation
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends -I ../libs/gl3w main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp ../libs/gl3w/GL/gl3w.c `sdl2-config --libs` -framework OpenGl -framework CoreFoundation
```
