update readme and demo templates

README.md

@@ -1,10 +1,10 @@
 ---
 layout: page
 permalink: readme.html
-title: support math and mermaid diagram in jekyll/minima theme
+title: Support math and mermaid in jekyll/minima theme
 ---
 
-Demo link: [https:// jeffatoptics.github.io/jeff-minima/](https://jeffatoptics.github.io/jeff-minima/)
+Demo link: [https://jeffatoptics.github.io/jeff-minima/](https://jeffatoptics.github.io/jeff-minima/)
 
 ## Purpose
 
@@ -23,6 +23,8 @@ Enhance [jekyll/minima](https://github.com/jekyll/minima) template with the supp
 
 1. Add a [category page](./category.md)
 
+
+
 ## Minor changes
 
 They are related to the theme layout and color:
@@ -33,6 +35,7 @@ They are related to the theme layout and color:
 
 1. add an emoji favicon 🐬 in customer-head.html. you can change it to any emoji or remove the line `<link rel="icon"..`
 
+1. copy the [sandervoerman/minima](https://github.com/sandervoerman/minima/blob/prefers-color-scheme/_sass/minima/skins/auto.scss) for auto theme support
 
 ## Usage
 

_config.yml

@@ -13,8 +13,8 @@ show_excerpts: true # set to true to show excerpts on the homepage
 # refer to https://shopify.github.io/liquid/filters/date/ if you want to customize this
 minima:
   date_format: "%b %-d, %Y"
-  skin: auto
-  # skin: classic, dark, Solarized-dark, Solarized
+  skin: dark
+  # skin: classic, dark, solarized-dark, solarized, auto
   # generate social links in footer
   social_links:
     #twitter: jekyllrb

_posts/2022-03-26-markdown-content-styles.md

@@ -48,6 +48,33 @@ Vestibulum lacus tortor, ultricies id dignissim ac, bibendum in velit. Proin con
 </html>
 ```
 
+```bash
+
+ls -l
+pwd
+ping 127.0.0.1 -s 300
+
+```
+
+```python
+
+import re
+ts=r"Id: *(\d+) \n"
+tspat=re.compile(ts)
+reqid=[]
+flog=open('test.txt','r',encoding='utf-8')
+num=0
+for flogline in flog:
+    #print(flogline)
+    ss=tspat.search(flogline)
+    if ss:
+        num=num+1
+        print(num,"\t",ss.group(1))
+        reqid.append(ss.group(1))
+
+```
+
+
 
 In arcu magna, aliquet vel pretium et, molestie et arcu. Mauris lobortis nulla et felis ullamcorper bibendum. Phasellus et hendrerit mauris.
 

_posts/2022-03-27-image-link.md

@@ -0,0 +1,36 @@
+---
+layout: post
+categories: link syntax
+title: demonstrate links to image file
+---
+
+1. `{% raw %}![link demo]({{ site.baseurl }}{% link assets/images/dolphin.jpg %}){% endraw %}`
+
+    mixed with jekyll liquid syntax. 
+
+    ![link demo]({{ site.baseurl }}{% link assets/images/dolphin.jpg %})
+
+1. `![](../assets/images/dolphin.jpg)`
+
+    markdown syntax. relative reference
+    ![](../assets/images/dolphin.jpg)
+
+1. `![](../assets/images/dolphin.jpg){: width="250"}`
+
+    markdown relative link syntax with jekyll liquid for size definition. 
+    ![](../assets/images/dolphin.jpg){: width="250"}
+
+1. {% raw %} <img src="{{ site.baseurl }}{% link assets/images/dolphin.jpg %}" width=225/>{% endraw %}
+
+    html image syntax with jekyll liquid variables.
+    absolute link reference
+    <img src="{{ site.baseurl }}{% link assets/images/dolphin.jpg %}" width=225/>
+    <img src="{{ site.baseurl }}{% link assets/images/dolphin.jpg %}" width=225/>
+    <img src="{{ site.baseurl }}{% link assets/images/dolphin.jpg %}" width=225/>
+    <img src="{{ site.baseurl }}{% link assets/images/dolphin.jpg %}" width=225/>
+
+[another demo in root folder](../demonstrate-links-in-root-folder.md.md)
+
+
+> ⚠️ **Do not put the images and files in `_posts` folder.**
+> **The relative links to static files (other than markdown file) do not works in github pages!**

_posts/2022-04-27-mardown-file-link-in-post-folder.md

@@ -1,37 +1,75 @@
 ---
 layout: post
-title: "link demo in post folder"
+title: "demonstrate links to markdown file in post folder"
 categories: link syntax
 author:
 - jeffatoptics
 ---
 
-Recommend to use the relative link markdown syntax 
+>📝 Recommend to use the relative link markdown syntax
 
 ## Relative link markdown syntax  
 
-- [home](../index.md) 
-- [next](2022-03-27-image-link-demo.md)
+- link to the file in root: [home](../index.md)
 
-```
-- [home](../index_image.md) 
-- [next](2002-04-21-test-date.md)
-```
+    ```
+    [home](../index.md) 
+    ```
+    
+- link to the file in _poster: [next](2022-03-27-image-link.md)
 
+    ```
+    [next](2002-04-21-test-date.md)
+    ```
 
 
-## jeklly link also works 
+
+## jekyll link syntax
 
 
 - [home url]({{ site.url }})
 
+    {% raw %}
+    [home url]({{ site.url }})
+    {% endraw %}
+
+
+
 - [home base url]({{ site.baseurl }})
 
-- [post link demo]({{ site.baseurl }}{% post_url 2022-03-26-markdown-content-styles %})
+    {% draw %}
+    [home base url]({{ site.baseurl }})
+    {% endraw %}
+
+
+
+- [post link demo]({{ site.baseurl }}{% post_url 2022-03-26-markdown-content-styles %}): link to file in _posts
+
+    {% endraw %}
+    [post link demo]({{ site.baseurl }}{% post_url 2022-03-26-markdown-content-styles %})
+    {% endraw %}
 
-- baseurl value:{{ site.baseurl }}
+- [link to root file ]({{ site.baseurl }}{% link header1 %}): link to file in root
+
+    {% endraw %}
+    [link to root file ]({{ site.baseurl }}{% link header1 %})
+    {% endraw %}
+
+
+## jekyll variable values
+
+- baseurl value: {{ site.baseurl }}
+
+    {% endraw %}
+    baseurl value: {{ site.baseurl }}
+    {% endraw %}
 
 - url value: {{ site.url }}
 
-- [back](2022-03-26-markdown-content-styles.md) 
-- [next](./2022-04-27-example2%20.md)
+    {% endraw %}
+    url value: {{ site.url }}
+    {% endraw %}
+
+
+[image link demo](2022-03-27-image-link.md)
+