README: Minor copyedits

README.md

@@ -23,19 +23,19 @@ If you want to write a new article, add a new file in the corresponding director
 
 **Note:** Please avoid changing the names of existing articles as this will change its permalink.
 
-### Article header (YML front matter)
+### Article header (YAML front matter)
 In the first few lines of each article, please remember to include/update the following fields:
 - `layout: post` (Just keep it like this)
 - `title: "Candidacy exam"` (The full title of the article)
 - `category: first` (Category as described in the previous section)
 - `order: 1` (Order of the article in the category. Articles are sorted in ascending order on the guide index page.)
 
-### How to write markdown
+### How to write Markdown
 The content of the articles can be written in Markdown and/or HTML.
 
 If you are not familiar with Markdown syntax, take a look at [this guide](https://www.markdownguide.org/basic-syntax/).
 
-**Note:** As the `h1` heading is reserved for the article title, please use `h2` (two hashtags in markdown `##`) or smaller headings within the article.
+**Note:** As the `h1` heading is reserved for the article title, please use `h2` (two hashtags `##` in Markdown) or smaller headings within the article.
 
 ### How to make a pull request
 To make a pull request, first fork this repository, make changes and commit to your fork, and come back here and click on "compare & pull request".
@@ -47,8 +47,7 @@ Edit [`index.md`](https://github.com/EPIC-guide/epic-guide.github.io/blob/main/i
 If you would like to build the webpage locally to preview the changes:
 
 1. Check (and install if not fulfilled) the [prerequisites](https://jekyllrb.com/docs/installation/#requirements): Ruby >= 2.5.0 with Dev headers, RubyGems, GCC and Make.
-2. [Install Jeykll](https://jekyllrb.com/docs/installation/) following the steps according to your operating system.
-3. Navigate to the root directory of this repo.
-4. Run `jekyll serve` to start the server. It will automatically regenerate webpages when you change the Markdown sources.
-4. Open a browser and go to [http://localhost:4000](http://localhost:4000).
-
+1. [Install Jeykll](https://jekyllrb.com/docs/installation/) following the steps according to your operating system.
+1. Navigate to the root directory of this repo.
+1. Run `jekyll serve` to start the server. It will automatically regenerate webpages when you change the Markdown sources.
+1. Open a browser and go to [http://localhost:4000](http://localhost:4000).