[green] Add board-neutral GitHub import examples

Signed-off-by: Viwat Vchirawongkwin <viwat.v@chula.ac.th>

Author: yyods

examples/github-import/README.md

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+<!-- SPDX-License-Identifier: MIT -->
+<!-- Part of PyBLE (https://pyble.dev) — see /LICENSE. -->
+
+# GitHub import examples
+
+This folder contains small, fresh PyBLE examples for testing the public GitHub
+import workflow. Both examples use ordinary Python output only. They assume no
+particular board, chip, pin, peripheral, or provisioning profile.
+
+To copy them to a connected board:
+
+1. Connect PyBLE to a compatible board and open the destination directory in
+   **Files**.
+2. Choose **Import examples from GitHub**.
+3. Enter `https://github.com/PyBLE-dev/PyBLE` as the repository. Leave the ref
+   blank for the repository's default branch, or enter an explicit public
+   branch, tag, or commit.
+4. Browse to `examples/github-import`, select `hello.py`, `count.py`, or both,
+   and continue to review.
+5. Confirm the displayed pinned commit, exact board target paths, and any
+   overwrite warning before importing.
+
+Importing copies the selected files into the Files directory that was open
+when the action began. PyBLE does not automatically open or run imported code;
+inspect a file first, then run it explicitly when ready.
+

examples/github-import/count.py

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+# SPDX-License-Identifier: MIT
+# Part of PyBLE (https://pyble.dev) — see /LICENSE.
+
+"""Count from one to five using only ordinary Python output."""
+
+for number in range(1, 6):
+    print("Count:", number)

examples/github-import/hello.py

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+# SPDX-License-Identifier: MIT
+# Part of PyBLE (https://pyble.dev) — see /LICENSE.
+
+"""Print a small greeting without assuming any attached hardware."""
+
+message = "Hello from PyBLE!"
+print(message)
+