Update .spellcheck.yml

.spellcheck.yml

@@ -1,10 +1,7 @@
 matrix:
 - name: Markdown
-  aspell:
+  hunspell:
     lang: en
-    ignore-case: true
-    camel-case: true
-    run-together: true
   dictionary:
     wordlists:
     - .wordlist.txt