diff --git a/.spellcheck.yml b/.spellcheck.yml
index d5762b4..806a68b 100644
--- a/.spellcheck.yml
+++ b/.spellcheck.yml
@@ -17,4 +17,7 @@ matrix:
       - code
       - pre
   sources:
-  - './book/**/*.md' 
+  - './book/**/*.md'
+  - 'README.md'
+  - 'SECURITY.md'
+  - 'CONTRIBUTING.md'
diff --git a/dictionary.dic b/dictionary.dic
new file mode 100644
index 0000000..7c4c629
Binary files /dev/null and b/dictionary.dic differ
diff --git a/wordlist.txt b/wordlist.txt
index 4b75a54..5573d13 100644
--- a/wordlist.txt
+++ b/wordlist.txt
@@ -27,4 +27,7 @@ Config
 PathBuf
 dir
 Exercism
-
+blockchain
+Ethereum
+HTTPS
+repo