Adopt new docs/tox API

- toc.ini changed
- spelling issue reported by Rao addressed

Issue-ID: OAM-335
Change-Id: Idf515651fecee8d7357c338b5812c799e65cc5f5
Signed-off-by: Martin Skorupski <martin.skorupski@highstreet-technologies.com>
diff --git a/tox.ini b/tox.ini
index 9ab0da4..e35f375 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,17 +8,17 @@
 
 [testenv:docs]
 basepython = python3
-deps = 
+deps =
     sphinx
     sphinx-rtd-theme
     sphinxcontrib-httpdomain
     recommonmark
     lfdocs-conf
-    
+
 commands =
     sphinx-build -W -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
     echo "Generated docs available in {toxinidir}/docs/_build/html"
-whitelist_externals = echo
+allowlist_externals = echo
 
 [testenv:docs-linkcheck]
 basepython = python3