fix variable

Author: jeff-allen-mongo

source/installation.txt

@@ -24,4 +24,4 @@ These documents provide instructions to install {+c2c-full-product-name+}.
 
    Linux </installation/install-on-linux>
    macOS </installation/install-on-macos>
-   Verify Signature </installation/verify>
+   Verify Packages </installation/verify>

source/installation/verify/gpg.txt

@@ -50,9 +50,9 @@ Steps
       .. example::
 
          The following URL contains the signature file for ``mongosync``
-         on Amazon Linux 2, version {+version+}:
+         on Amazon Linux 2, version {+latest-version+}:
 
-         ``https://s3.amazonaws.com/downloads.mongodb.org/tools/mongosync/mongosync-amazon2-x86_64-{+version+}.tgz.sig``
+         ``https://s3.amazonaws.com/downloads.mongodb.org/tools/mongosync/mongosync-amazon2-x86_64-{+latest-version+}.tgz.sig``
 
    .. step:: Verify the package