First blinky pico tutorial

Signed-off-by: Paul Guyot <[email protected]>

Author: pguyot

.gitignore

@@ -2,3 +2,4 @@
 **/deps/**
 **/mix.lock
 **/rebar3.crashdump
+.DS_Store

tutorials/.gitignore

@@ -0,0 +1,20 @@
+*.beam
+*.ez
+/build
+erl_crash.dump
+
+# Generated tutorial HTML
+build/
+
+# Python virtual environment
+venv/
+
+# Python cache
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+
+# Sphinx build artifacts
+docs/_build/
+docs/.doctrees/