remove slashes from BR tags and correct Spanish sentence

seed_data/challenges/basic-html5-and-css.json

@@ -143,7 +143,7 @@
         "",
         "<h2>CatPhotoApp</h2>",
         "",
-        "<br/>",
+        "<br>",
         "",
         "<p>Hello Paragraph</p>",
         "-->"
@@ -180,7 +180,7 @@
         "",
         "<h2>CatPhotoApp</h2>",
         "",
-        "<br/>",
+        "<br>",
         "",
         "<p>Hello Paragraph</p>",
         "-->"
@@ -216,7 +216,7 @@
         "",
         "<h2>CatPhotoApp</h2>",
         "",
-        "<br/>",
+        "<br>",
         "",
         "<p>Hello Paragraph</p>"
       ],
@@ -252,7 +252,7 @@
         "",
         "<h2>CatPhotoApp</h2>",
         "",
-        "<br/>",
+        "<br>",
         "",
         "<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>"
       ],

views/challengeMap/show.jade

@@ -64,7 +64,7 @@ block content
                         a(href='https://freecode.slack.com/messages/chinese')  請按這裡來參觀我們的中文聊天室
                         | .
                     h4.text-left Estamos trabajando a traducir Free Code Camp en español!  
-                        a(href='https://freecode.slack.com/messages/espanol') Haz clic aquí para ir a nuestra sala de chat españal
+                        a(href='https://freecode.slack.com/messages/espanol') Haz clic aquí para ir a nuestra sala de chat español
                         | .
                     h4.text-left Nós estamos trabalhando para traduzir o Free Code Camp para o Português!  
                         a(href='https://freecode.slack.com/messages/portugues') Clique aqui para visitar nossa sala de bate-papo em Português