Update content/en/about/bundle.md

Co-authored-by: Hayden B <[email protected]>
Signed-off-by: Appu <[email protected]>

content/en/about/bundle.md

@@ -18,7 +18,7 @@ is satisfied by the **Verification Material** and signature **Content**.
 
 ### Verification Material
 
-This is key materical used to verify signatures along with supporting metadata like transparency log entries and timestamps. Bundles must include at least one transpareny log's signed entry timestamp or an rfc3161 timestamp to provide proof of signing time.
+This is key material used to verify signatures along with supporting metadata like transparency log entries and timestamps. Bundles must include at least one transparency log's signed entry timestamp or an [RFC3161](https://www.ietf.org/rfc/rfc3161.txt) timestamp to provide proof of signing time.
 
 #### Key Material