chore: remove python < 3.5 support

Author: ziirish

.github/workflows/test.yml

@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, pypy2, pypy3]
+        python-version: [3.5, 3.6, 3.7, 3.8, pypy2, pypy3]
     steps:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v1

README.rst

@@ -38,7 +38,7 @@ and expose its documentation properly using `Swagger`_.
 Compatibility
 =============
 
-Flask-RESTX requires Python 2.7 or 3.4+.
+Flask-RESTX requires Python 3.5+.
 
 
 Installation

doc/index.rst

@@ -16,13 +16,13 @@ and expose its documentation properly (using Swagger).
 Compatibility
 =============
 
-flask-restx requires Python 2.7+.
+Flask-RESTX requires Python 3.5+.
 
 
 Installation
 ============
 
-You can install flask-restx with pip:
+You can install Flask-RESTX with pip:
 
 .. code-block:: console