YH4F fixed typo and gramma

fsfe.org/activities/yh4f/activity.en.xml

@@ -6,7 +6,7 @@
   <activity id="yh4f" date="2021-09-27" status="active">
     <title>Youth Hacking 4 Freedom</title>
     <description>
-    Young people, from all over Europe, compete in Youth Hacking 4 Freedom  to win cash prizes by creating programs of their choice licensed as Free Software. The six winners will be invited to the Award ceremony weekend.  Youth Hacking for Freedom inspires people to learn programming and to collaborate. 
+    Young people, from all over Europe, compete in Youth Hacking 4 Freedom to win cash prizes by creating programs of their choice licensed as Free Software. The six winners will be invited to the Award ceremony weekend. Youth Hacking for Freedom inspires people to learn programming and to collaborate. 
     </description>
     <link href="/activities/yh4f/" />
     <image url="/graphics/logos/yh4f.png" />

fsfe.org/activities/yh4f/index.en.xhtml

@@ -17,7 +17,7 @@
       <strong>If you like programming, tinkering, having fun with software and if
       you are up for a challenge, we have something exciting for you: "Youth
       Hacking 4 Freedom" (YH4F), the FSFE's hacking competition for young people
-      from Europe! On top you can up to €4096 and a trip to Brussels for the award ceremony!</strong>
+      from Europe! On top you can win up to €4096 and a trip to Brussels for the award ceremony!</strong>
     </p>
   </div>