diff --git a/docs/content/references/hfm.md b/docs/content/references/hfm.md
index c72746606..379fe0ef8 100644
--- a/docs/content/references/hfm.md
+++ b/docs/content/references/hfm.md
@@ -8,36 +8,36 @@ These tables tell you what exactly we support in HedgeDoc 1.x (HFM 1) and HedgeD
## Typography
-| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
-|---------------|:-----:|:-----:|:-------------------:|:-----------------:|
-| bold | ☑️ | ☑️ | ☑️ | ☑️ |
-| italic | ☑️ | ☑️ | ☑️ | ☑️ |
-| underline | ☑️ | ☑️ | (☑️ with `<ins>`) | (☑️ with `<ins>`) |
-| strikethrough | ☑️ | ☑️ | (☑️ with `<del>`) | ☑️ |
-| subscript | ☑️ | ☑️ | (☑️ with `<sub>`) | (☑️ with `<sub>`) |
-| superscript | ☑️ | ☑️ | (☑️ with `<sup>`) | (☑️ with `<sup>`) |
-| marked | ☑️ | ☑️ | (☑️ with `<mark>`) | (☑️ with `<mark>`) |
+| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
+| ------------- | :---: | :---: | :---------------: | :---------------: |
+| bold | ☑️ | ☑️ | ☑️ | ☑️ |
+| italic | ☑️ | ☑️ | ☑️ | ☑️ |
+| underline | ☑️ | ☑️ | (☑️ with `<ins>`) | (☑️ with `<ins>`) |
+| strikethrough | ☑️ | ☑️ | (☑️ with `<del>`) | ☑️ |
+| subscript | ☑️ | ☑️ | (☑️ with `<sub>`) | (☑️ with `<sub>`) |
+| superscript | ☑️ | ☑️ | (☑️ with `<sup>`) | (☑️ with `<sup>`) |
+| marked | ☑️ | ☑️ | (☑️ with `<mark>`) | (☑️ with `<mark>`) |
## Extended typography features
-| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
-|--------------------------------|:-----:|:-----:|:----------:|:---:|
-| heading | ☑️ | ☑️ | ☑️ | ☑️ |
-| inline code | ☑️ | ☑️ | ☑️ | ☑️ |
-| indented code blocks | ☑️ | ☑️ | ☑️ | ☑️ |
-| code block with language[^highlight] | ☑️ | ☑️ | ☑️ | ☑️ |
-| code block with extra features[^extra-code] | ☑️ | ☑️ | | |
-| block quote | ☑️ | ☑️ | ☑️ | ☑️ |
-| name tag (`[name=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
-| time tag (`[time=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
-| color tag (`[color=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
-| unorderd list | ☑️ | ☑️ | ☑️ | ☑️ |
-| ordered list | ☑️ | ☑️ | ☑️ | ☑️ |
-| task list | ☑️ | ☑️ | | ☑️ |
-| defition list | ☑️ | ☑️ | | |
-| emoji | [Unicode 6.1][unicode-6] | [Unicode 13][unicode-13] | | |
-| [ForkAwesome][fa] | ☑️ with `<i class='fa'>` | ☑️ with shortcodes | | |
-| LaTeX | ☑️[^mj] | ☑️[^kt] | | |
+| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
+| ------------------------------------------- | :----------------------: | :----------------------: | :--------: | :---: |
+| heading | ☑️ | ☑️ | ☑️ | ☑️ |
+| inline code | ☑️ | ☑️ | ☑️ | ☑️ |
+| indented code blocks | ☑️ | ☑️ | ☑️ | ☑️ |
+| code block with language[^highlight] | ☑️ | ☑️ | ☑️ | ☑️ |
+| code block with extra features[^extra-code] | ☑️ | ☑️ | | |
+| block quote | ☑️ | ☑️ | ☑️ | ☑️ |
+| name tag (`[name=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
+| time tag (`[time=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
+| color tag (`[color=...]`) | (☑️)[^in-bq-list] | ☑️ | | |
+| unorderd list | ☑️ | ☑️ | ☑️ | ☑️ |
+| ordered list | ☑️ | ☑️ | ☑️ | ☑️ |
+| task list | ☑️ | ☑️ | | ☑️ |
+| defition list | ☑️ | ☑️ | | |
+| emoji | [Unicode 6.1][unicode-6] | [Unicode 13][unicode-13] | | |
+| [ForkAwesome][fa] | ☑️ with `<i class='fa'>` | ☑️ with shortcodes | | |
+| LaTeX | ☑️[^mj] | ☑️[^kt] | | |
[^highlight]: Code blocks with a given language are rendered using syntax highlighting.
[^extra-code]: Several special "language" keywords can be used for rendering diagrams, charts, etc.
@@ -47,56 +47,56 @@ These tables tell you what exactly we support in HedgeDoc 1.x (HFM 1) and HedgeD
## Links & Images
-| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
-|-----------------------|:-----:|:-----:|:----------------:|:----------------:|
-| link | ☑️ | ☑️ | ☑️ | ☑️ |
-| link reference | ☑️ | ☑️ | ☑️ | ☑️ |
-| link title | ☑️ | ☑️ | ☑️ | ☑️ |
-| autolink with `<>` | ☑️ | ☑️ | ☑️ | ☑️ |
-| autolink without `<>` | ☑️ | ☑️ | | ☑️ |
-| footnotes | ☑️ | ☑️ | | |
-| image | ☑️ | ☑️ | ☑️ | ☑️ |
-| image with given size | ☑️ | ☑️ | (☑️ with `<img>`) | (☑️ with `<img>`) |
-| table of contents | ☑️ | ☑️ | | |
+| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
+| --------------------- | :---: | :---: | :--------------: | :--------------: |
+| link | ☑️ | ☑️ | ☑️ | ☑️ |
+| link reference | ☑️ | ☑️ | ☑️ | ☑️ |
+| link title | ☑️ | ☑️ | ☑️ | ☑️ |
+| autolink with `<>` | ☑️ | ☑️ | ☑️ | ☑️ |
+| autolink without `<>` | ☑️ | ☑️ | | ☑️ |
+| footnotes | ☑️ | ☑️ | | |
+| image | ☑️ | ☑️ | ☑️ | ☑️ |
+| image with given size | ☑️ | ☑️ | (☑️ with `<img>`) | (☑️ with `<img>`) |
+| table of contents | ☑️ | ☑️ | | |
## Structural elements
-| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
-|-------------------|:------------------------:|:------------------------:|:--------------------:|:--------------------:|
-| table | ☑️ | ☑️ | (☑️ with `<table>`) | ☑️ |
-| horizontal line | ☑️ | ☑️ | ☑️ | ☑️ |
-| collapsable block | (☑️ with `<details>`) | ☑️ | (☑️ with `<details>`) | (☑️ with `<details>`) |
-| Alerts | ☑️ | ☑️ | | |
+| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
+| ----------------- | :------------------: | :---: | :------------------: | :------------------: |
+| table | ☑️ | ☑️ | (☑️ with `<table>`) | ☑️ |
+| horizontal line | ☑️ | ☑️ | ☑️ | ☑️ |
+| collapsable block | (☑️ with `<details>`) | ☑️ | (☑️ with `<details>`) | (☑️ with `<details>`) |
+| Alerts | ☑️ | ☑️ | | |
## Embeddings
HFM 1 includes support for certain embeddings of external content by using the `{%keyword parameter %}` syntax. To increase the readability of the markdown code we decided that HFM 2 should just use plain links if possible.
-| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
-|--------------------------|:-----:|:------------------:|:----------:|:---:|
-| PDF (`{%pdf ... %}`) | ☑️ | removed | | |
-| [YouTube][youtube] (`{%youtube ... %}`) | ☑️ | with plain link[^embed] | | |
-| [Vimeo][vimeo] (`{%vimeo ... %}`) | ☑️ | with plain link[^embed] | | |
-| [Slideshare][slideshare] (`{%slideshare ... %}`) | ☑️ | removed | | |
-| [Speakerdeck][speakerdeck] (`{%speakerdeck ... %}`) | ☑️ | removed | | |
-| [GitHub Gist][gist] (`{%gist ... %}`) | ☑️ | with plain link[^embed] | | |
+| Feature | HFM 1 | HFM 2 | CommonMark | GFM |
+| --------------------------------------------------- | :---: | :---------------------: | :--------: | :---: |
+| PDF (`{%pdf ... %}`) | ☑️ | removed | | |
+| [YouTube][youtube] (`{%youtube ... %}`) | ☑️ | with plain link[^embed] | | |
+| [Vimeo][vimeo] (`{%vimeo ... %}`) | ☑️ | with plain link[^embed] | | |
+| [Slideshare][slideshare] (`{%slideshare ... %}`) | ☑️ | removed | | |
+| [Speakerdeck][speakerdeck] (`{%speakerdeck ... %}`) | ☑️ | removed | | |
+| [GitHub Gist][gist] (`{%gist ... %}`) | ☑️ | with plain link[^embed] | | |
[^embed]: The special syntax from HFM 1 is deprecated, but will still work in HFM 2. However, a plain link to the content should be used.
## HTML
Besides the basic HTML typography elements (`<p>`, `<a>`, `<b>`, `<ins>`, `<del>`) the following more special HTML elements are supported by some specification.
-| Feature | HedgeDocMark 1 | HedgeDocMark 2 | CommonMark | GFM |
-|:-------------:|:--------------:|:--------------:|:----------:|:---:|
-| `<title>` | | | ☑️ | |
-| `<textarea>` | | ☑️ | ☑️ | |
-| `<style>` | ☑️ | ☑️ | ☑️ | |
-| `<xmp>` | | | ☑️ | |
-| `<iframe>` | ☑️ | ☑️ | ☑️ | |
-| `<noembed>` | ☑️ | | ☑️ | |
-| `<noframes>` | ☑️ | | ☑️ | |
-| `<script>` | | | ☑️ | |
-| `<plaintext>` | | ☑️ | ☑️ | |
+| Feature | HedgeDocMark 1 | HedgeDocMark 2 | CommonMark | GFM |
+| :-----------: | :------------: | :------------: | :--------: | :---: |
+| `<title>` | | | ☑️ | |
+| `<textarea>` | | ☑️ | ☑️ | |
+| `<style>` | ☑️ | ☑️ | ☑️ | |
+| `<xmp>` | | | ☑️ | |
+| `<iframe>` | ☑️ | ☑️ | ☑️ | |
+| `<noembed>` | ☑️ | | ☑️ | |
+| `<noframes>` | ☑️ | | ☑️ | |
+| `<script>` | | | ☑️ | |
+| `<plaintext>` | | ☑️ | ☑️ | |
[fa]: https://forkaweso.me/
[youtube]: https://www.youtube.com/