Docsp 48008 fix v7.0 (#765)

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- [DOCSP-number](https://jira.mongodb.org/browse/)
- [STAGING](paste the link to staging here)

- [LATEST BUILD LOG](paste the build here)

### Self-Review Checklist

- [ ]
[Define](https://wiki.corp.mongodb.com/display/DE/Taxonomy+tagging+instructions)
taxonomy
[values](https://wiki.corp.mongodb.com/display/DE/Docs+Taxonomy) at top
of page.
- [ ] Add genre facets (tutorial or reference), as in this [example
PR](10gen/cloud-docs#5042).
- [ ] Add programmingLanguage (if necessary).
- [ ] Add meta keywords (if necessary).
- [ ] Resolve any new warnings or errors in the build.
- [ ] Proofread for spelling and grammatical errors.
- [ ] Check staging for rendering issues.
- [ ] Confirm links are working.

Author: davidhou17

source/reference/api/snapshots/take-an-on-demand-snapshot.txt

@@ -106,14 +106,14 @@ Example Response
 ----------------
 
 Response Header
-~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~
 
 .. include:: /includes/api/api-headers/401.rst
 
 .. include:: /includes/api/api-headers/200.rst
 
 Response Body
-~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~
 
 .. code-block:: json