Minor tweaks on code lenses (mongodb#33)

* Minor tweaks on code lenses

* Re-tweaked

Author: mmarcon

source/playgrounds.txt

@@ -102,9 +102,9 @@ an active connection, |vsce| displays
 
 .. figure:: /images/vsce-playground-add-connection-btn.png
    :figwidth: 700px
-   :alt: Button to add connection from playground
+   :alt: Link to add connection from playground
 
-1. Click this button to open the connection string dialog.
+1. Click this link to open the connection string dialog.
 
 #. Enter the
    :manual:`connection string </reference/connection-string/>` for the
@@ -127,8 +127,8 @@ If you select a section of your playground, you may optionally run only
 the selected portion. You may run either a single line or multiple lines
 of your playground.
 
-|vsce| shows the :guilabel:`Run Selected Lines from Playground` button
-immediately below your selected section. Click this button to test and
+|vsce| shows the :guilabel:`Run Selected Lines from Playground` link
+immediately above your selected section. Click this link to test and
 troubleshoot specific lines or sections of your playground.
 
 Tutorials