fixing issues in postbydate page

LecturesByDate.md

@@ -51,7 +51,8 @@ desc: "2024 Spring  UVa CS Machine Learning Lectures Organized by Given Order"
  <ul>
   {% if post.lecture %}
   <li><a href="{{ site.baseurl }}/Lectures/{{ post.lecture }}.pdf"  target="_blank">Lecture: 
-  {{ post.lecture }}</a></li>
+  {{ post.lecture }}</a>
+  </li>
   <li>Version: {{ post.lectureVersion }}</li>
   {% endif %}
 
@@ -79,15 +80,12 @@ desc: "2024 Spring  UVa CS Machine Learning Lectures Organized by Given Order"
 
 <br>
 
-
-  {% if post.lecture  %}
-    {% if post.lectureVersion contains 'current' %}
-
+<h3>Summary of Post :</h3>
+    {% if post.content contains '<!--excerpt.start-->'  %}
+      {{   post.content | split:'<!--excerpt.start-->' | first  }}
+    {% else %}
+      {{ post.content }}
     {% endif %}
-  {% endif %}
-
-    {{ post.content }}
-
 
   </div>
 <hr>

_contents/S0-L00-Intro.md

@@ -36,3 +36,6 @@ categories:
 
 
 + A good code walk through on transformer at [URL](https://nlp.seas.harvard.edu/annotated-transformer/)
+
+<!--excerpt.start-->
+

_contents/S0-L01.md

@@ -38,3 +38,5 @@ categories:
 #### Generative AI: Perspectives from Stanford HAI
  + https://hai.stanford.edu/generative-ai-perspectives-stanford-hai 
 
+
+<!--excerpt.start-->

_contents/S0-L02.md

@@ -36,3 +36,6 @@ In this session, our readings cover:
 ### On the Opportunities and Risks of Foundation Models 
   +  https://arxiv.org/abs/2108.07258
   + " a thorough account of the opportunities and risks of foundation models, ranging from their capabilities (e.g., language, vision, robotics, reasoning, human interaction) and technical principles(e.g., model architectures, training procedures, data, systems, security, evaluation, theory) to their applications (e.g., law, healthcare, education) and societal impact (e.g., inequity, misuse, economic and environmental impact, legal and ethical considerations)." 
+
+
+<!--excerpt.start-->