Add source constant and text to link to mdb-shell

Author: Caitlin Davey

snooty.toml

@@ -20,6 +20,7 @@ sharedinclude_root = "https://raw.githubusercontent.com/10gen/docs-shared/main/"
 [constants]
 version = "5.5"
 api = "https://mongodb.github.io/node-mongodb-native/{+version+}"
+min-node-version = "v12"
 driver-long = "MongoDB Node.js driver"
 driver-short = "Node.js driver"
 mdb-server = "MongoDB Server"

source/fundamentals/time-series.txt

@@ -20,8 +20,9 @@ Node.js driver.
 Create a Time Series Collection
 -------------------------------
 
-We recommend that you create a time series collection using the MongoDB Shell
-(``mongosh``). For detailed instructions on creating a time series collection
+We recommend that you create a time series collection using the MongoDB Shell.
+See the :mdb-shell:`MongoDB Shell documentation <>`to learn more. 
+For detailed instructions on creating a time series collection
 using the MongoDB Shell, see our
 :manual:`MongoDB Manual entry on time series collections </core/timeseries-collections/#create-a-time-series-collection>`.
 

source/quick-start/download-and-install.txt

@@ -9,7 +9,7 @@ Download and Install
 
    .. step:: Install Node and npm
 
-      Ensure you have Node.js v12 or later and 
+      Ensure you have Node.js {+min-node-version+} or later and 
       npm (Node Package Manager) installed in your development environment.
 
       For information on how to install Node.js and npm, see