build(docs-infra): ensure all headings are sentence cased (#24527)

PR Close #24527

aio/tools/transforms/templates/api/class.template.html

@@ -9,8 +9,8 @@
 {% block details %}
   {% block additional %}{% endblock %}
   {% include "includes/description.html" %}
-  {$ memberHelpers.renderProperties(doc.staticProperties, 'static-properties', 'static-property', 'Static Properties') $}
-  {$ memberHelpers.renderMethodDetails(versionInfo, doc.staticMethods, 'static-methods', 'static-method', 'Static Methods') $}
+  {$ memberHelpers.renderProperties(doc.staticProperties, 'static-properties', 'static-property', 'Static properties') $}
+  {$ memberHelpers.renderMethodDetails(versionInfo, doc.staticMethods, 'static-methods', 'static-method', 'Static methods') $}
   {% if doc.constructorDoc %}
   <h2>Constructor</h2>
   {$ memberHelpers.renderMethodDetail(versionInfo, doc.constructorDoc, 'constructor') $}{% endif %}

aio/tools/transforms/templates/api/includes/deprecation.html

@@ -1,6 +1,6 @@
 {% if doc.deprecated %}
 <section class="deprecated">
-  <h2>Deprecation Notes</h2>
+  <h2>Deprecation notes</h2>
   {$ doc.deprecated | marked $}
 </section>
 {% endif %}

aio/tools/transforms/templates/api/includes/metadata.html

@@ -1,6 +1,6 @@
 {% if doc.members.length %}
 <section class="meta-data">
-  <h2>Metadata Properties</h2>
+  <h2>Metadata properties</h2>
     {% for metadata in doc.members %}{% if not metadata.internal %}
     <div class="metadata-member">
       <a name="{$ metadata.name $}" class="anchor-offset"></a>

aio/tools/transforms/templates/api/includes/pipe-overview.html

@@ -11,7 +11,7 @@
     {%- endfor %} }}</code-example>
 
   {% if doc.valueParam.type %}
-  <h2>Input Value</h2>
+  <h2>Input value</h2>
   {$ params.renderParameters([doc.valueParam], 'pipe-parameters', 'pipe-parameter', true) $}
   {% endif %}
   {% if doc.pipeParams.length %}

aio/tools/transforms/templates/api/includes/security-notes.html

@@ -1,6 +1,6 @@
 {% if doc.security %}
 <section "security">
-  <h2>Security Risk</h2>
+  <h2>Security risk</h2>
   {$ doc.security | marked $}
 </section>
 {% endif %}

aio/tools/transforms/templates/api/includes/see-also.html

@@ -1,6 +1,6 @@
 {%- if doc.see.length %}
 <section class="see-also">
-  <h2>See Also</h2>
+  <h2>See also</h2>
   <ul>
   {% for see in doc.see %}
     <li>{$ see | marked $}</li>{% endfor %}

aio/tools/transforms/templates/api/includes/usageNotes.html

@@ -1,6 +1,6 @@
 {% if doc.usageNotes %}
 <section class="usage-notes">
-  <h2>Usage Notes</h2>
+  <h2>Usage notes</h2>
   {$ doc.usageNotes | marked $}
 </section>
 {% endif %}