docs(demos) update information to reflect new layout (#3029)

demos/README.md

@@ -1,14 +1,54 @@
 # Demos for LVGL
 
 ## Add the examples to your projects
-1. Clone this repository: `git clone https://github.com/lvgl/lv_demos.git`.
+1. demos can be found in the 'demos' folder once you clone the lvgl. 
-2. The `lv_demos` directory should be next to the `lvgl` directory in your project.
+
+2. In the ***lv_conf.h*** or equivalent places, you can find demo related macros, change its value to enable or disable specified demos:
+
+```c
+...
+/*===================
+ * DEMO USAGE
+ ====================*/
+
+/*Show some widget. It might be required to increase `LV_MEM_SIZE` */
+#define LV_USE_DEMO_WIDGETS        0
+#if LV_USE_DEMO_WIDGETS
+#define LV_DEMO_WIDGETS_SLIDESHOW  0
+#endif
+
+/*Demonstrate the usage of encoder and keyboard*/
+#define LV_USE_DEMO_KEYPAD_AND_ENCODER     0
+
+/*Benchmark your system*/
+#define LV_USE_DEMO_BENCHMARK   0
+
+/*Stress test for LVGL*/
+#define LV_USE_DEMO_STRESS      0
+
+/*Music player demo*/
+#define LV_USE_DEMO_MUSIC       0
+#if LV_USE_DEMO_MUSIC
+# define LV_DEMO_MUSIC_SQUARE       0
+# define LV_DEMO_MUSIC_LANDSCAPE    0
+# define LV_DEMO_MUSIC_ROUND        0
+# define LV_DEMO_MUSIC_LARGE        0
+# define LV_DEMO_MUSIC_AUTO_PLAY    0
+#endif
+...
+```
+
+3. If your development environment or toolchain does not add source files inside '***lvgl***' folder automatically, ensure the `demos` folder is included for compilation.  
+4. Include "***demos/lv_demos.h***" in your application source file, for example:
+
+```c
+//! main.c
+#include "lvgl.h"
+#include "demos/lv_demos.h"
+...
+```
+
 
-Similarly to `lv_conf.h` there is a configuration file for the examples too. It is called `lv_demo_conf.h`.
-1. Copy `lv_demos/lv_demo_conf_template.h` next to `lv_demos` directory
-2. Rename it to `lv_demo_conf.h`
-3. Change the first `#if 0` to `#if 1` to enable the file's content
-4. Enable or Disable demos
 
 ## Demos
 

demos/benchmark/README.md

@@ -11,7 +11,7 @@ The size and position of the objects during testing are set with a pseudo random
 On to top of the screen the title of the current test step, and the result of the previous step is displayed.
 
 ## Run the benchmark
-- In `lv_ex_conf.h` set `LV_USE_DEMO_BENCHMARK 1`
+- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_BENCHMARK 1`
 - After `lv_init()` and initializing the drivers call `lv_demo_benchmark()`
 
 ## Interpret the result

demos/keypad_encoder/README.md

@@ -9,5 +9,5 @@ Learn more about the touchpad-less usage of LVGL [here](https://docs.lvgl.io/mas
 ![Keypad and encoder navigation in LVGL embedded GUI library](screenshot1.gif)
 
 ## Run the demo
-- In `lv_ex_conf.h` set `LV_USE_DEMO_KEYPAD_AND_ENCODER 1`
+- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_KEYPAD_AND_ENCODER 1`
 - After `lv_init()` and initializing the drivers call `lv_demo_keypad_encoder()`

demos/music/README.md

@@ -7,7 +7,7 @@ The music player demo shows what kind of modern, smartphone-like user interfaces
 ![Music player demo with LVGL embedded GUI library](https://github.com/lvgl/lv_examples/blob/master/src/lv_demo_music/screenshot1.gif?raw=true)
 
 ## Run the demo
-- In `lv_ex_conf.h` set `LV_USE_DEMO_MUSIC 1`
+- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_MUSIC 1`
 - With `LV_DEMO_MUSIC_AUTO_PLAY` enabled a ~60 sec demo will be played.
 - After `lv_init()` and initializing the drivers call `lv_demo_music()`
 

demos/stress/README.md

@@ -8,6 +8,6 @@ It contains a lot of object creation, deletion, animations, styles usage, and so
 ![Printer demo with LVGL embedded GUI library](https://github.com/lvgl/lv_examples/blob/master/src/lv_demo_stress/screenshot1.gif?raw=true)
 
 ## Run the demo
-- In `lv_ex_conf.h` set `LV_USE_DEMO_STRESS 1`
+- In `lv_conf.h` or equivalent places set `LV_USE_DEMO_STRESS 1`
 - In `lv_conf.h` enable all the widgets (`LV_USE_BTN 1`) and the animations (`LV_USE_ANIMATION 1`)
 - After `lv_init()` and initializing the drivers call `lv_demo_stress()`