docs, samples: tflite-micro: change tensorflow to tensorflow lite micro

Changes name of folder from tensorflow to tflite-micro and updates docs
to reference TensorFlow Lite Micro specifically instead of TensorFlow.

Signed-off-by: Lauren Murphy <lauren.murphy@intel.com>

samples/modules/tflite-micro/hello_world/README.rst

@@ -1,7 +1,7 @@
 .. _tensorflow_hello_world:
 
-TensorFlow Hello World sample
-#############################
+TensorFlow Lite Micro Hello World sample
+########################################
 
 Overview
 ********
@@ -23,7 +23,7 @@ running inference on a microcontroller.
    `the TensorFlow Hello World sample for Zephyr`_.
 
 .. _the TensorFlow Hello World sample for Zephyr:
-   https://github.com/tensorflow/tensorflow/tree/master/tensorflow/lite/micro/examples/hello_world
+   https://github.com/tensorflow/tflite-micro/tree/main/tensorflow/lite/micro/examples/hello_world
 
 Building and Running
 ********************

samples/modules/tflite-micro/magic_wand/README.rst

@@ -1,7 +1,7 @@
 .. _tensorflow_magic_wand:
 
-TensorFlow Magic Wand sample
-############################
+TensorFlow Lite Micro Magic Wand sample
+#######################################
 
 Overview
 ********
@@ -16,7 +16,7 @@ from an accelerometer.
     `the Antmicro tutorial on Renode emulation for TensorFlow`_.
 
 .. _the TensorFlow Magic Wand sample for Zephyr:
-    https://github.com/tensorflow/tensorflow/tree/master/tensorflow/lite/micro/examples/magic_wand
+    https://github.com/tensorflow/tflite-micro/tree/main/tensorflow/lite/micro/examples/magic_wand
 
 .. _the Antmicro tutorial on Renode emulation for TensorFlow:
     https://github.com/antmicro/litex-vexriscv-tensorflow-lite-demo