Update New Language Request issue template

Author: o2sh

Diff for: .github/ISSUE_TEMPLATE/new-language.md

@@ -1,20 +1,20 @@
 ---
-name: New language
+name: New Language Request
 about: Request for a new language to be supported
-title: "Support for [NEW LANGUAGE]"
+title: "New Language Request: [LANGUAGE]"
 labels: 'Type: Enhancement, good first issue'
-assignees: ''
 
 ---
 
-# \[Language Name\]
+### \[Language Name\]
+
 <!-- Please provide the name of the language and any additional details that we should know -->
 
-## Logo
+### Logo
 
 <!-- Is there a logo that can be used as a source of inspiration for the ASCII art? -->
 
-## Upstream support
+### Upstream support
 
 <!-- Onefetch relies on tokei for language detection. Does tokei already support the language in question? -->
 - [ ] [tokei] supports this language