feat(rdb): fix card texts

Author: ldecarvalho-doc

pages/managed-databases-for-postgresql-and-mysql/troubleshooting/index.mdx

@@ -21,30 +21,33 @@ categories:
 <Grid>
     <DefaultCard
       title="Managed Databases for PostgreSQL and MySQL FAQ"
+      description="General info on Managed Databases"
       url="/faq/databases-for-postgresql-and-mysql/"
       label="See more"
     />
     <DefaultCard
       title="How to apply scheduled maintenance to a Database Instance"
+      description="Manage scheduled maintenance"
       url="/managed-databases-for-postgresql-and-mysql/how-to/apply-maintenance/"
       label="See more"
     />
     <DefaultCard
       title="Security and Reliability"
+      description="Best practices for security"
       url="/managed-databases-for-postgresql-and-mysql/reference-content/security-and-reliability/"
       label="See more"
     />
 </Grid>
 <Grid>
     <DefaultCard
       title="PostgreSQL extensions reference"
-      description="Learn more about the PostgreSQL extensions."
+      description="Learn more about the PostgreSQL extensions"
       url="/managed-databases-for-postgresql-and-mysql/reference-content/postgresql-extensions/"
       label="See more"
     />
     <DefaultCard
       title="Understanding the autohealing feature"
-      description="Learn more about the autohealing feature."
+      description="Learn more about the autohealing feature"
       url="/managed-databases-for-postgresql-and-mysql/reference-content/autohealing"
       label="See more"
     />