small fixes in carousel

Author: ebarra

public/assets/carousel.json

@@ -27,12 +27,12 @@
     "label": "Final thesis offer",
     "description":  "Discover the final theses offered by the GING",
     "image": "/assets/img/carousel/tft.png",
-    "url": "https://www.dit.upm.es/index.php/tfts/325-ofertas-de-tft-para-el-curso-2019-20-en-el-grupo-ging "
+    "url": "https://www.dit.upm.es/tfts"
   },
   {
     "label": "ResearchGate lab profile",
-    "description":  "",
-    "image": "/assets/img/carousel/researchgate.png",
+    "description":  "Research Group page at ResearchGate",
+    "image": "/assets/img/carousel/researchgate.jpg",
     "url": "https://www.researchgate.net/lab/Next-Generation-Internet-Group-Juan-Quemada"
   }
 ]