Format checklist items in pull request template

.github/pull_request_template.md

@@ -1,16 +1,16 @@
 After you have read the [instructions for adding a theme](https://github.com/gohugoio/hugoThemesSiteBuilder/blob/main/README.md#adding-a-theme), please make sure:
 
 - [ ] your theme.toml [is complete](https://github.com/gohugoio/hugoThemesSiteBuilder/blob/main/README.md#theme-configuration)
-    - [ ] name
-    - [ ] license
-    - [ ] licenselink
-    - [ ] description
-    - [ ] homepage
-    - [ ] demosite (if one exists)
-    - [ ] tags
-    - [ ] features
-    - [ ] authors/author (depending on whether the theme has multiple or a single author)
-    - [ ] original (if the theme is a fork)
+    - name
+    - license
+    - licenselink
+    - description
+    - homepage
+    - demosite (if one exists)
+    - tags
+    - features
+    - authors/author (depending on whether the theme has multiple or a single author)
+    - original (if the theme is a fork)
 - [ ] you're using [absolute paths for images](https://github.com/gohugoio/hugoThemesSiteBuilder/blob/main/README.md#use-absolute-paths-for-images) in your README
 - [ ] you've got [appropriate thumbnail and screenshot images](https://github.com/gohugoio/hugoThemesSiteBuilder/blob/main/README.md#media)
 - [ ] your theme comes with an [appropriate license](https://github.com/gohugoio/hugoThemesSiteBuilder/blob/main/README.md#2-license)