📝 Docs: update contributing file

CONTRIBUTING.md

@@ -7,7 +7,7 @@ First, fork this repository by clicking the fork button.
 Next, clone your forked repo.
 
 ```bash
-git clone --recursive https://github.com/hugo-fixit/FixIt.git && cd FixIt
+git clone https://github.com/hugo-fixit/FixIt.git && cd FixIt
 ```
 
 Then, install the dev dependencies.
@@ -27,6 +27,12 @@ npm run server
 npm run server:production
 ```
 
+If you want to do docs-related theme changes, the simplest way is to have both `FixIt` and `fixit-docs` cloned as sibling directories, and then run:
+
+```bash
+npm run server:docs
+```
+
 Finally, create a new pull request at <https://github.com/hugo-fixit/FixIt/pulls> to submit your contribution 🎉
 
 ## Git standard for developers

package.json

@@ -22,6 +22,7 @@
     "build": "hugo -v --source=demo --gc --minify",
     "server": "hugo server --source=demo -D --disableFastRender --navigateToChanged --ignoreCache --bind 0.0.0.0",
     "server:production": "npm run server -- -e production",
+    "server:docs": "hugo server --source=../fixit-docs -D --disableFastRender --navigateToChanged --ignoreCache --bind 0.0.0.0",
     "version": "sed -i '' \"s/v$npm_package_version-RC/v$npm_package_version/g\" layouts/partials/init/index.html && git add .",
     "postversion": "git push && git push --tags"
   }