diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
index 463d83f..0ca45f6 100644
--- a/.github/workflows/spellcheck.yml
+++ b/.github/workflows/spellcheck.yml
@@ -15,7 +15,7 @@ jobs:
                   python-version: 3.7
             - name: Install dependencies
               run: |
-                  sudo apt update && sudo apt install -y enchant
+                  sudo apt update && sudo apt install -y enchant-2
                   python -m pip install --upgrade setuptools
                   python -m pip install --upgrade pyenchant sphinx-rtd-theme sphinxcontrib-spelling
             - name: Check spelling
diff --git a/clients/includes/install-message-factory.inc b/clients/includes/install-message-factory.inc
index 2ca6116..fccb721 100644
--- a/clients/includes/install-message-factory.inc
+++ b/clients/includes/install-message-factory.inc
@@ -18,3 +18,4 @@ accessed through :ref:`factories <message-factory>`. Message factories for
 .. _Laminas Diactoros: https://github.com/laminas/laminas-diactoros
 .. _Slim PSR-7: https://github.com/slimphp/Slim-Psr7
 .. _Zend Diactoros: https://github.com/zendframework/zend-diactoros
+.. _Slim Framework: https://github.com/slimphp/Slim
diff --git a/conf.py b/conf.py
index 8498f1b..98d2ade 100644
--- a/conf.py
+++ b/conf.py
@@ -80,7 +80,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
diff --git a/discovery.rst b/discovery.rst
index 5fb4ba0..3a79fe6 100644
--- a/discovery.rst
+++ b/discovery.rst
@@ -30,23 +30,26 @@ implementations but only on the standard. The library should only require the
 PSR standards.
 
 To run tests, you might still need an implementation. We recommend to
-explicitly require that, but only for dev. To build a library that needs to
-send HTTP requests, you could do:
+explicitly require that, but only for development. To build a library that
+needs to send HTTP requests, you could do:
 
 .. code-block:: bash
+
     $ composer require --dev symfony/http-client
     $ composer require --dev nyholm/psr7
 
 Then, you can disable the Composer plugin provided by ``php-http/discovery``
-because you just installed the dev dependencies you need for testing:
+because you just installed the ``dev`` dependencies you need for testing:
 
 .. code-block:: bash
+
     $ composer config allow-plugins.php-http/discovery false
 
 Finally, you need to require ``php-http/discovery`` and the generic implementations
 that your library is going to need:
 
 .. code-block:: bash
+
     $ composer require php-http/discovery:^1.17
     $ composer require psr/http-client-implementation:*
     $ composer require psr/http-factory-implementation:*
@@ -132,6 +135,7 @@ to prefer. You can specify the implementation for one of the standards:
 
 
 .. code-block:: bash
+
     $ composer config extra.discovery.psr/http-factory-implementation GuzzleHttp\Psr7\HttpFactory
 
 This will update your ``composer.json`` file to add the following configuration:
@@ -158,6 +162,7 @@ Don't forget to run composer install to apply the changes, and ensure that
 the composer plugin is enabled:
 
 .. code-block:: bash
+
     $ composer config allow-plugins.php-http/discovery true
     $ composer install
 
@@ -338,7 +343,7 @@ Internally, this class relies on the concrete PSR-17 factories that are installe
 and can use discovery to find implementations if you do not specify them in the constructor.
 
 ``Psr17Factory`` provides two additional methods that allow creating
-server requests or URI objects from the PHP super-globals::
+server requests or URI objects from the PHP superglobals::
 
     $serverRequest = $factory->createServerRequestFromGlobals();
     $uri = $factory->createUriFromGlobals();
diff --git a/integrations/symfony-bundle.rst b/integrations/symfony-bundle.rst
index 2ab0a86..f0af382 100644
--- a/integrations/symfony-bundle.rst
+++ b/integrations/symfony-bundle.rst
@@ -562,7 +562,7 @@ To mock a response in your tests, do:
     $client->getContainer()->get('httplug.clients.my_awesome_backend.client')->addResponse($response);
 
 If you do not specify the factory in your configuration, you can also directly
-overwrite the httplug services:
+overwrite the HTTPlug services:
 
 
 .. code-block:: yaml
diff --git a/message/message-factory.rst b/message/message-factory.rst
index c9099a1..0852733 100644
--- a/message/message-factory.rst
+++ b/message/message-factory.rst
@@ -139,3 +139,4 @@ to do that yet. Contributions are welcome if you want to define the
 .. _Laminas Diactoros: https://github.com/laminas/laminas-diactoros
 .. _Slim PSR-7: https://github.com/slimphp/Slim-Psr7
 .. _Zend Diactoros: https://github.com/zendframework/zend-diactoros
+.. _Slim Framework: https://github.com/slimphp/Slim
diff --git a/plugins/logger.rst b/plugins/logger.rst
index f755343..278e439 100644
--- a/plugins/logger.rst
+++ b/plugins/logger.rst
@@ -26,10 +26,10 @@ compliant logger::
         [$loggerPlugin]
     );
 
-The log level for exceptions is `error`, the request and responses without exceptions are logged at level `info`.
-Request and response/errors can be correlated by looking at the `uid` of the log context.
-If you don't want to normally log requests, you can set the logger to normally only log `error` but use the
-Fingerscrossed logger of monolog to also log the request in case an exception is encountered.
+The log level for exceptions is ``error``, the request and responses without exceptions are logged at level ``info``.
+Request and response/errors can be correlated by looking at the ``uid`` of the log context.
+If you don't want to normally log requests, you can set the logger to normally only log ``error`` but use the
+``Fingerscrossed`` logger of Monolog to also log the request in case an exception is encountered.
 
 By default it uses ``Http\Message\Formatter\SimpleFormatter`` to format the request or the response into a string.
 You can use any formatter implementing the ``Http\Message\Formatter`` interface::
diff --git a/plugins/redirect.rst b/plugins/redirect.rst
index 0dfe8d4..965a953 100644
--- a/plugins/redirect.rst
+++ b/plugins/redirect.rst
@@ -32,7 +32,7 @@ Initiate the redirect plugin as follows::
 .. note::
 
     Depending on the status code, redirecting should change POST/PUT requests to GET requests. This
-    plugin implements this behaviour - except if you set the ``strict`` option to true, as explained
+    plugin implements this behavior - except if you set the ``strict`` option to true, as explained
     below. It removes the request body if the method changes, see ``stream_factory`` below.
 
     To understand the exact semantics of which HTTP status changes the method and which not, have a
diff --git a/spelling_word_list.txt b/spelling_word_list.txt
index a209c06..0383be3 100644
--- a/spelling_word_list.txt
+++ b/spelling_word_list.txt
@@ -27,6 +27,7 @@ plugin
 plugins
 matchers
 matcher
+Monolog
 multipart
 natively
 param
@@ -35,11 +36,13 @@ profiler
 PHP
 phpdoc
 rebase
+redirections
 Semver
 Seekable
 seekable
 sexualized
 sublicense
+superglobals
 sync
 toolbar
 typehint