Add navitaion link in term pages

_layouts/distill.liquid

@@ -93,6 +93,44 @@
           </d-contents>
         {% endif %}
         {{ content }}
+
+        {% assign sorted_wiki_terms = site.wiki | sort: 'title' %}
+
+        {% assign current_page_url_normalized = page.url | relative_url | replace_first: site.baseurl, '' | strip | split: '#' | first %}
+
+        {% assign previous_page = null %}
+        {% assign next_page = null %}
+        {% assign found_current_page = false %}
+
+        {% for wiki_page in sorted_wiki_terms %}
+          {% assign wiki_page_url_normalized = wiki_page.url | relative_url | replace_first: site.baseurl, '' | strip | split: '#' | first %}
+
+          {% if found_current_page %}
+            {% assign next_page = wiki_page %}
+            {% break %}
+          {% endif %}
+
+          {% if wiki_page_url_normalized == current_page_url_normalized %}
+            {% assign found_current_page = true %}
+          {% else %}
+            {% assign previous_page = wiki_page %}
+          {% endif %}
+        {% endfor %}
+
+        <div class="wiki-navigation-pointers mt-5">
+          <div class="navigation-links">
+            {% if previous_page %}
+              <p class="previous-link">
+                <a href="{{ previous_page.url | relative_url }}">Previous: {{ previous_page.title }}</a>
+              </p>
+            {% endif %}
+            {% if next_page %}
+              <p class="next-link">
+                <a href="{{ next_page.url | relative_url }}">Next: {{ next_page.title }}</a>
+              </p>
+            {% endif %}
+          </div>
+        </div>
       </d-article>
 
       <d-appendix>

_wiki/ancillary-service.md

@@ -22,5 +22,3 @@ Source: <d-cite key="ferc2020glossary"></d-cite>
 > Those services necessary to support the transmission of electric power from seller to purchaser, given the obligations of control areas and transmitting utilities within those control areas, to maintain reliable operations of the interconnected transmission system. Ancillary services supplied with generation include load following, reactive power-voltage regulation, system protective services, loss compensation service, system control, load dispatch services, and energy imbalance services.
 
 More details can be found in the Reference <d-cite key="nerc2011ancillary"></d-cite> Appendix I: Regional Practices for Ancillary Services.
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-<br>

_wiki/contingency-analysis.md

@@ -20,5 +20,3 @@ Relevant items: [Contingency List](/wiki/contingency-list)
 Source: <d-cite key="isone2024crop34007"></d-cite>
 
 The procedures to study a contingency are documented in the source reference.
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_wiki/critical-clearing-time.md

@@ -20,5 +20,3 @@ last_update: 2025-06-20
 Source: <d-cite key="kundur2004stability"></d-cite>
 
 > The maximum permissible duration of the fault for which the subsequent system response remains stable. This portion of stability analysis requires the knowledge of actions of protective relaying.
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_wiki/equal-area-criterion.md

@@ -28,7 +28,3 @@ Another earlier reference to the Equal Area Criterion can be found in <d-cite ke
         Fig. 13.14 Response to a step change in mechanical power input (from <d-cite key="kundur1994Power"></d-cite>)
     </div>
 </div>
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_wiki/frequency-deviation.md

@@ -19,5 +19,3 @@ last_update: 2025-06-20
 Source: <d-cite key="nerc2024glossary"></d-cite>
 
 > A change in Interconnection frequency.
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-<br>

_wiki/primary-frequency-response.md

@@ -26,5 +26,3 @@ Relevant news:
 - 2022 Feb., <d-cite key="pjm2022reliability"></d-cite> p1, _Based on PJM’s frequency response analysis and oscillation detection using highly granularity PMU data, in addition to NERC Resource Subcommittee analysis, there are no near term concerns with inertia in the EI._
 - 2021 Nov., <d-cite key="pjm2021capacity"></d-cite> p4, _PJM proposed "Reliability Products and Services" that involves Inertial in the Frequency Response._
 - 2021 March, <d-cite key="pjm2021reliability"></d-cite> p11, _Inertial and Primary Frequency Response: Generators that provide these types of frequency response are not explicitly compensated for this service under today’s rules._
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_wiki/region.md

@@ -33,7 +33,3 @@ Source: <d-cite key="nerc2024glossary"></d-cite>
         Regional Maps (from <d-cite key="nerc2024tpl"></d-cite>)
     </div>
 </div>
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-<br>
-<br>

_wiki/subregions.md

@@ -33,8 +33,3 @@ Source: <d-cite key="epa2024gridregions"></d-cite>
         Map of eGRID Subregions (from <d-cite key="epa2024gridregions"></d-cite>)
     </div>
 </div>
-
-<br>
-<br>
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-<br>

_wiki/zone.md

@@ -30,7 +30,3 @@ Source: <d-cite key="pjm2023transmission"></d-cite>
 Source: <d-cite key="matpowerv71"></d-cite> p139
 
 In MATPOWER, there is a bus parameter named "ZONE", and it means loss zone.
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