Bump flask from 2.0.3 to 2.3.2

Bumps [flask](https://github.com/pallets/flask) from 2.0.3 to 2.3.2.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/flask/compare/2.0.3...2.3.2)

---
updated-dependencies:
- dependency-name: flask
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

CONTRIBUTING.md

@@ -0,0 +1 @@
+The main objective of this repository is to provide an example of CRUD with Flask, maximum simplicity. If you want to add new features, please create a Fork of it and notify me of its existence so I can add it in the README as support material.

README.md

@@ -1,7 +1,5 @@
 # Flask contacts
 
-[DEMO](http://flask-contacts.programadorwebvalencia.com)
-
 ![alls](https://github.com/tanrax/flask-contacts/raw/master/screenshots/alls.jpg)
 
 ## Use
@@ -30,3 +28,7 @@ python3 app.py
 ![message](https://github.com/tanrax/flask-contacts/raw/master/screenshots/message.jpg)
 ![new](https://github.com/tanrax/flask-contacts/raw/master/screenshots/new.jpg)
 ![search](https://github.com/tanrax/flask-contacts/raw/master/screenshots/search.jpg)
+
+## Forks with extensions
+
+- ![Ability to attach a CSV file](https://github.com/areeburrub/flask-contacts)

migrations.py

@@ -17,4 +17,5 @@ for num in range(100):
     # Save in database
     mi_contacto = Contact(name=name, surname=surname, email=email, phone=phone)
     db.session.add(mi_contacto)
-    db.session.commit()
+
+db.session.commit()

requirements.txt

@@ -1,5 +1,8 @@
 Faker==0.7.11
-Flask==0.12.1
+Flask==2.3.2
-Flask-SQLAlchemy==2.2
+Flask-SQLAlchemy==2.5.1
-Flask-WTF==0.14.2
+Flask-WTF==0.14.3
 gunicorn
+Werkzeug==2.0.3
+Jinja2==3.0.0
+email_validator

templates/layouts/master.html

@@ -19,7 +19,7 @@
 			<span class="icon-bar"></span>
 			<span class="icon-bar"></span>
 		  </button>
-		  <a class="navbar-brand" href="#">Contact Manager</a>
+		  <a class="navbar-brand" href="/">Contact Manager</a>
 		</div>
 		<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
 			<form action="{{ url_for('search') }}" method="get" class="navbar-form navbar-left">