Update roles_and_responsibilities.ad

Fix typos
diff --git a/pages/guides/roles_and_responsibilities.ad b/pages/guides/roles_and_responsibilities.ad
index 602eaeb..f913b69 100644
--- a/pages/guides/roles_and_responsibilities.ad
+++ b/pages/guides/roles_and_responsibilities.ad
@@ -35,7 +35,7 @@
 
 To enable effective management of the process of incubation, described below, is the role and responsibility of all participants throughout the incubation lifecycle.
 
-A project going through the Incubator must report to the IPMC regularly. This helps the IPMC in its role of reviewing the status of a projects under incubation.
+A project going through the Incubator must report to the IPMC regularly. This helps the IPMC in its role of reviewing the status of projects under incubation.
 
 Finally, the IPMC is the ASF body with the greatest level of expertise, knowledge and experience in the Incubation process. Mentors or a Podling can call on the IPMC as a resource during (or even after) the incubation process.
 
@@ -65,7 +65,7 @@
 
 == Champion
 
-A Chamption is an link:http://www.apache.org/foundation/index.html[Officer] or link:http://www.apache.org/foundation/members.html[Member] of the Foundation who sponsors a candidate project as it applies for Incubation.
+A Champion is an link:http://www.apache.org/foundation/index.html[Officer] or link:http://www.apache.org/foundation/members.html[Member] of the Foundation who sponsors a candidate project as it applies for Incubation.
 The Champion assists the candidate project on its initial submission. While the Apache community does not generally encourage private conversations, they are allowed at this point as the Chamption educates the Candidate about the Apache Way and prepares the project for the questions and issues the wider community may raise.
 
 Before incubation begins, the Champion is expected to: