Add demo

Add links to demo projects using the following models:
- 030_BlazeFace
- 032_FaceMesh
- 041_DBFace
- 042_centernet
- 072_NanoDet
- 087_DeepSort
- 134_head-pose-estimation-adas-0001

Update description of demo projects using the following models:
- 132_YOLOX

030_BlazeFace/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## BlazeFace with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_face_blazeface

032_FaceMesh/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## FaceMesh with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_face_facemesh

041_DBFace/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## DBFace with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_face_dbface

042_centernet/demo/README.md

@@ -0,0 +1,8 @@
+# Demo projects
+
+## CenterNet Object Detection with TensorRT in C++
+https://github.com/iwatake2222/play_with_tensorrt/tree/master/pj_tensorrt_det_centernet
+
+## CenterNet Object and Keypoints Detection with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_det_centernet_tf_kpts
+

072_NanoDet/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## NanoDet with OpenCV(cv::dnn + ONNX) in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_det_nanodet

087_DeepSort/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## YOLOX-Nano + Deep SORT with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_track_deepsort

132_YOLOX/demo/README.md

@@ -3,7 +3,7 @@
 ## YOLOX with TensorFlow Lite - Python
 https://github.com/PINTO0309/PINTO_model_zoo/tree/main/132_YOLOX/demo/tflite
 
-## YOLOX with ~~TensorFlow Lite~~ OpenCV(cv::dnn + ONNX) in C++
+## YOLOX with TensorFlow Lite and OpenCV(cv::dnn + ONNX) in C++
 https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_det_yolox
 
 ## YOLOX with TensorRT in C++

134_head-pose-estimation-adas-0001/demo/README.md

@@ -0,0 +1,4 @@
+# Demo projects
+
+## Head Pose Estimation with TensorFlow Lite in C++
+https://github.com/iwatake2222/play_with_tflite/tree/master/pj_tflite_face_head-pose-estimation-adas-0001