Update text-align with source for justify

Author: mrmrs

docs/typography/text-align/index.html

@@ -32,7 +32,7 @@
       <a href="/" class="dib f5 f4-ns fw6 mt0 mb1 link black-70" title="Home">
         Tachyons
         <div class="dib">
-          <small class="nowrap f6 mt2 mt3-ns pr2 black-70 fw2">v4.7.0</small>
+          <small class="nowrap f6 mt2 mt3-ns pr2 black-70 fw2">v4.8.0</small>
         </div>
       </a>
     </div>
@@ -156,6 +156,7 @@ <h4 class="f4 mv0 fw6 dib mr4">tachyons-text-align</h4>
     l = left
     r = right
     c = center
+    j = justify
 
   Media Query Extensions:
     -ns = not-small
@@ -167,23 +168,27 @@ <h4 class="f4 mv0 fw6 dib mr4">tachyons-text-align</h4>
 .tl  { text-align: left; }
 .tr  { text-align: right; }
 .tc  { text-align: center; }
+.tj  { text-align: justify; }
 
 @media (--breakpoint-not-small) {
   .tl-ns  { text-align: left; }
   .tr-ns  { text-align: right; }
   .tc-ns  { text-align: center; }
+  .tj-ns  { text-align: justify; }
 }
 
 @media (--breakpoint-medium) {
   .tl-m  { text-align: left; }
   .tr-m  { text-align: right; }
   .tc-m  { text-align: center; }
+  .tj-m  { text-align: justify; }
 }
 
 @media (--breakpoint-large) {
   .tl-l  { text-align: left; }
   .tr-l  { text-align: right; }
   .tc-l  { text-align: center; }
+  .tj-l  { text-align: justify; }
 }