Add Missing Closing Tags in About Page (hackforla#5732)

* Add missing </span> closing tags in Workforce Development, Impact, and Agility sections

* Undo some parts to reflect necessary fixes only

_includes/about-page/about-card-platform.html

@@ -49,7 +49,7 @@
                     </p>
                 </div>
                 <div class="platform-sec-agility">
-                    <div class="sub-card-head"><span class="sub-head-image"><img src="/assets/images/about/platform-header-elements/agility.svg" alt=""></span><span class="sub-head-text color-deeppink">Agility</div>
+                    <div class="sub-card-head"><span class="sub-head-image"><img src="/assets/images/about/platform-header-elements/agility.svg" alt=""></span><span class="sub-head-text color-deeppink">Agility</span></div>
                     <p class="sub-card-content border-deeppink">
                         There will be impediments, setbacks and disappointments. We embrace change by empowering our members to
                         meet, talk, experiment and achieve enough common consensus to move internal initiatives forward, without