Update class utility docs

assets/_scss/_utilities.scss

@@ -84,12 +84,26 @@ body:hover .visually-hidden button {
    Type
    ========================================================================== */
 
-/* center align */
+.text-left {
+  text-align: left;
+}
 
-.center {
+.text-center {
   text-align: center;
 }
 
+.text-right {
+  text-align: right;
+}
+
+.text-justify {
+  text-align: justify;
+}
+
+.text-nowrap {
+  white-space: nowrap;
+}
+
 
 /*
    Alignment
@@ -134,6 +148,14 @@ body:hover .visually-hidden button {
   }
 }
 
+/* image align center */
+
+.align-center {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
 /* file page content container */
 
 .full {