Add PySpelling support

PySpelling is a python module for spell checking. It consumes Aspell or
Hunspell checking tools to catch misspelled words. This can be useful
during the core review.

Signed-off-by: Victor Morales <v.morales@samsung.com>

.github/.wordlist.txt

@@ -0,0 +1,9 @@
+anuket
+Baraque
+Kubernetes
+Lakelse
+OpenStack
+sexualized
+Snezka
+socio
+tsc

.gitignore

@@ -6,3 +6,4 @@ doc/.DS_Store
 _build/
 .tox/
 .vscode/
+*.dic

.spellcheck.yml

@@ -0,0 +1,21 @@
+---
+# SPDX-license-identifier: Apache-2.0
+##############################################################################
+# Copyright (c) 2022 Samsung Corporation
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+matrix:
+  - name: markdown
+    dictionary:
+      wordlists:
+        - .github/.wordlist.txt
+    pipeline:
+      - pyspelling.filters.html:
+    sources:
+      - '_build/html/*.html'
+    aspell:
+      ignore-case: true

test-requirements.txt

@@ -4,3 +4,4 @@
 sphinx!=1.6.6,!=1.6.7,!=2.1.0,!=3.0.0,!=3.4.2 # BSD
 doc8 # Apache-2.0
 sphinx-material
+pyspelling # MIT

tox.ini

@@ -12,3 +12,4 @@ deps =
 commands =
     sphinx-build --keep-going -W -T -b html -D language=en doc _build/html
     sphinx-build --keep-going -W -b linkcheck doc _build/html
+    pyspelling -c .spellcheck.yml