Community page: update GCI info, fix typos

Author: Humdinger

content/community/_index.html

@@ -83,13 +83,13 @@ <h3>Mentoring programs</h3>
 
 <p>Haiku also participates in various programs where seasoned members of the community
 help newcomers get started with Haiku. This allows us to make more people aware
-of our existence, and get the new developper on a fast track, by letting them work full
+of our existence, and get the new developer on a fast track, by letting them work full
 time on Haiku for a few months.</p>
 
 <ul>
 	<li>The <a href="/community/gsoc/">Google Summer of Code</a> is funded by Google and targets students.</li>
-	<li><a href="https://outreachy.org">Outreachy</a> is run by the Software Freedom Conservancy and focusses on improving diversity in open source.</li>
-	<li>The <a href="https://codein.withgoogle.com">Google Code-In</a> is a contest funded by Google and targets 13-17 year old, to give them a first experience of software development.</li>
+	<li><a href="https://outreachy.org">Outreachy</a> is run by the Software Freedom Conservancy and focuses on improving diversity in open source.</li>
+	<li>The <a href="https://codein.withgoogle.com">Google Code-In</a> was a contest funded by Google. It targeted 13-17 year olds, to give them a first experience of software development. Haiku was participating in all the 10 years it ran before it ended in 2020.</li>
 </ul>
 
 <h2 style="border_bottom:1px solid #cacaca">Organisational Structure</h2>