Update package nomination wording (#750)

Author: rauhul

packages/_get-involved.html

@@ -1,6 +1,3 @@
 <p class="cta">
-  <strong>Get involved!</strong> Packages in the Community Showcase are nominated by community members like you. This is
-  your chance to share new or interesting packages with others. The only restriction is that you can't nominate packages
-  you maintain. <a href="https://forums.swift.org/t/68168">Nominate packages here</a> and you could see them featured
-  next month!
+  <strong>Get involved!</strong> Packages in the Community Showcase are nominated by community members like you. This is your chance to share new or interesting packages with others. <a href="https://forums.swift.org/t/68168">Nominate packages here</a> and you could see them featured next month!
 </p>