Fix topic:3d links and a typo.

Author: Ivorforce

organization/areas.rst

@@ -21,7 +21,7 @@ The best way to get involved with a team is by joining their respective `RocketC
 --
 
 * GitHub team: `godotengine/3d-nodes <https://github.com/godotengine/godot/pulls?q=is%3Apr+is%3Aopen+team-review-requested%3Agodotengine%2F3d-nodes>`__
-* GitHub label: ``topic:3d`` · issues · PRs
+* GitHub label: ``topic:3d`` · `issues <https://github.com/godotengine/godot/issues?q=is%3Aissue%20state%3Aopen%20label%3Atopic%3A3d>`__ · `PRs <https://github.com/godotengine/godot/pulls?q=is%3Apr+is%3Aopen+label%3Atopic%3A3d>`__
 
 Animation
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organization/how_to_contribute.rst

@@ -69,7 +69,7 @@ Technical contributions
   All pull requests need to be thoroughly reviewed before they can be merged into the master branch.
   Help us get a headstart by participating in the code review process.
 
-  To get started, chose any `open pull request <https://github.com/godotengine/godot/pulls>`_ and reference our **style guide**: :ref:`doc_pr_review_guidelines`
+  To get started, choose any `open pull request <https://github.com/godotengine/godot/pulls>`_ and reference our **style guide**: :ref:`doc_pr_review_guidelines`
 
 - **Write Plugins (GDScript, C#, & more)**
   Community addons are not directly included in the core engine download or repository, yet they provide essential quality of life upgrades for your fellow game developers.