Fixed incorrect challenge seed for bootstrap waypoint

Waypoint 'Use Spans for Inline Elements' has incorrect code in the seed. Corrected it.
Closes #3089

seed/challenges/bootstrap.json

@@ -909,19 +909,11 @@
       "challengeSeed": [
         "<link href=\"http://fonts.googleapis.com/css?family=Lobster\" rel=\"stylesheet\" type=\"text/css\">",
         "<style>",
-        "  .red-text {",
-        "    color: red;",
-        "  }",
         "",
         "  h2 {",
         "    font-family: Lobster, Monospace;",
         "  }",
         "",
-        "  p {",
-        "    font-size: 16px;",
-        "    font-family: Monospace;",
-        "  }",
-        "",
         "  .thick-green-border {",
         "    border-color: green;",
         "    border-width: 10px;",
@@ -929,17 +921,12 @@
         "    border-radius: 50%;",
         "  }",
         "",
-        "  .smaller-image {",
-        "    width: 100px;",
-        "  }",
         "</style>",
         "",
         "<div class=\"container-fluid\">",
-        "  <h2 class=\"red-text text-center\">CatPhotoApp</h2>",
+        "  <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "",
-        "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
-        "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "  <img src=\"http://bit.ly/fcc-running-cats\" class=\"img-responsive\">",
         "  <div class=\"row\">",