Addition of tracker to user research promo and typo fix (#866)

Author: lidiazuin

doc/preview.yml

@@ -58,10 +58,10 @@ asciidoc:
     neo4j-docs-base-uri: https://neo4j.com/docs
     api-version: 1.15-preview
     # User research promo
-    page-ad-overline-link: https://neo4j.com/docs/user-research
+    page-ad-overline-link: https://neo4j.com/docs/user-research?ref=gds-docs
     page-ad-title: Join the User Research panel
     page-ad-icon: chat-bubble-left-right
-    page-ad-description:  Influence the future of Neo4j products by sharing your experiences with a reseacher.
-    page-ad-link: https://neo4j.com/docs/user-research
+    page-ad-description:  Influence the future of Neo4j products by sharing your experiences with a researcher.
+    page-ad-link: https://neo4j.com/docs/user-research?ref=gds-docs
     page-ad-underline-role: button
     page-ad-underline: Learn more

doc/publish.yml

@@ -55,10 +55,10 @@ asciidoc:
     neo4j-docs-base-uri: https://neo4j.com/docs
     api-version: 1.15-preview
     # User research promo
-    page-ad-overline-link: https://neo4j.com/docs/user-research
+    page-ad-overline-link: https://neo4j.com/docs/user-research?ref=gds-docs
     page-ad-title: Join the User Research panel
     page-ad-icon: chat-bubble-left-right
-    page-ad-description:  Influence the future of Neo4j products by sharing your experiences with a reseacher.
-    page-ad-link: https://neo4j.com/docs/user-research
+    page-ad-description:  Influence the future of Neo4j products by sharing your experiences with a researcher.
+    page-ad-link: https://neo4j.com/docs/user-research?ref=gds-docs
     page-ad-underline-role: button
     page-ad-underline: Learn more