add note about enchant dependency for spellcheck in docs
diff --git a/docs/development/getting-started.rst b/docs/development/getting-started.rst
index db34cb9..f5d6c19 100644
--- a/docs/development/getting-started.rst
+++ b/docs/development/getting-started.rst
@@ -13,6 +13,9 @@
     $ pip install --requirement dev-requirements.txt
     $ pip install --editable .
 
+You will also need to install ``enchant`` using your system's package manager
+to check spelling in the documentation.
+
 You are now ready to run the tests and build the documentation.
 
 Running tests