Various tweaks based on design feedback

Tommy sent over some feedback, and I've tried to incorporate it. I've
brought in the Light variant of the Source Serif font, as although
figma uses Regular, these seemed to render too heavy in browsers even
with the smoothing options I also added.

_includes/our_members.html

@@ -19,10 +19,6 @@
   </dialog>
 </section>
 
-<section>
-  <a class="btn" href="/hire">Hire our co-ops</a>
-</section>
-
 <script>
   const dialog = document.getElementById('coop-dialog');
   const dialogBody = document.getElementById('coop-dialog-container__body');

_includes/services.html

@@ -10,7 +10,7 @@
   <div class="grid">
     <div class="box stack">
       <h3 class="title">Digital products & platforms</h3>
-      <ul>
+      <ul class="services">
         <li>Websites & web apps 
(WordPress, Drupal, Webflow, custom)</li>
         <li>CMS / CRM design and development</li>
         <li>E-commerce</li>
@@ -24,7 +24,7 @@
 
     <div class="box stack">
       <h3 class="title">Design & content</h3>
-      <ul>
+      <ul class="services">
         <li>User research & testing</li>
         <li>Design sprints & discovery</li>
         <li>Accessibility & usability training</li>
@@ -37,7 +37,7 @@
 
     <div class="box stack">
       <h3 class="title">Marketing & comms</h3>
-      <ul>
+      <ul class="services">
         <li>Digital strategy & campaigns</li>
         <li>Copywriting</li>
         <li>Social media marketing</li>
@@ -49,7 +49,7 @@
 
     <div class="box stack">
       <h3 class="title">Co-op & organisational development</h3>
-      <ul>
+      <ul class="services">
         <li>Cooperative Development</li>
         <li>Facilitation</li>
         <li>Sociocracy Training</li>