Fix trailing whitespace

Yes I know, I need to fix my brain instead.

docs/technotes/migrate.rst

@@ -3,7 +3,7 @@ Migrate legacy Restructured Text technical notes
 ################################################
 
 This page provides a guide to migrating Restructured Text technotes from the legacy Sphinx format to the current format. 
-Migrate your actively maintained technotes to take advantage of `new features <https://community.lsst.org/t/the-next-generation-of-rubin-observatory-technotes-with-documenteer-1-0/8166>`__. 
+Migrate your actively maintained technotes to take advantage of `new features <https://community.lsst.org/t/the-next-generation-of-rubin-observatory-technotes-with-documenteer-1-0/8166>`__.
 
 Your technote is in the legacy format if:
 
@@ -15,7 +15,7 @@ Getting started
 
 1. Make sure you have a Python 3.11 environment.
 
-2. Check out your technote repo and create a working branch. 
+2. Check out your technote repo and create a working branch.
 
 3. We have provided a `migration tool <#technote-migration-tool>`__ , :command:`documenteer technote migrate` that converts your technote repository from the old framework to the new one.
 You should only be resorting to the `manual steps <#technote-migration-detailed>`__ if you have a problem with the tool or are in another non-typical situation such as a customized build process.
@@ -75,7 +75,7 @@ If you want to learn more about the changes made by the migration tool, you can
 Manual steps
 ============
 
-You should only follow these steps if there is an issue with running the migration tool. 
+You should only follow these steps if there is an issue with running the migration tool.
 
 Step 1. Create a technote.toml file
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