Fix customer images

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

_includes/consulting-page/consulting-cta.html

@@ -17,7 +17,7 @@ <h1 class="title has-text-weight-light is-size-4 is-size-4-desktop has-text-grey
                             <div class="media">
                               <div class="media-left">
                                 <figure class="image is-48x48">
-                                  <img src="https://media-exp1.licdn.com/dms/image/C4E03AQGokjk-H8E4tg/profile-displayphoto-shrink_400_400/0/1547152782953?e=1616025600&amp;v=beta&amp;t=YZegWSTnn8IENhUaOj4-xxjxae29jSGPDC_dSKZAvTI" alt="Avatar">
+                                  <img src="/images/customers/clyde.jpg" alt="Avatar">
                                 </figure>
                               </div>
                               <div class="media-content">
@@ -38,7 +38,7 @@ <h1 class="title has-text-weight-light is-size-4 is-size-4-desktop has-text-grey
                             <div class="media">
                               <div class="media-left">
                                 <figure class="image is-48x48">
-                                  <img src="https://pbs.twimg.com/profile_images/2742561220/05fb33d14e661e6ff0db677e3976a8ba_400x400.png" alt="Avatar">
+                                  <img src="/images/customers/markb.jpg" alt="Avatar">
                                 </figure>
                               </div>
                               <div class="media-content">
@@ -59,7 +59,7 @@ <h1 class="title has-text-weight-light is-size-4 is-size-4-desktop has-text-grey
                           <div class="media">
                             <div class="media-left">
                               <figure class="image is-48x48">
-                                <img src="https://pbs.twimg.com/profile_images/1220730746970746880/0Ju5boxt_400x400.jpg" alt="Avatar">
+                                <img src="/images/customers/markc.jpg" alt="Avatar">
                               </figure>
                             </div>
                             <div class="media-content">