Fixes to contributing.md (#12184)

Co-authored-by: Raymond Berger <RayBB@users.noreply.github.com>

Author: Sadashii

CONTRIBUTING.md

@@ -26,6 +26,7 @@ This welcome section is intended for new contributors.
     * [Request a slack invite](https://openlibrary.org/volunteer)
     * [Weekly Community calls](https://docs.openlibrary.org/everyone/community-call.html)
     * [Open Library FAQs](https://openlibrary.org/help/faq)
+
 ## Quick Tour
 
 A quick public tour of Open Library to get you familiar with the service and its offerings (10min)
@@ -78,7 +79,7 @@ Refer to the [docs](https://docs.openlibrary.org/) for more information about ge
 
 ## Picking Good First Issues
 
-[Here's a list of good first issues](https://github.com/internetarchive/openlibrary/issues?q=is%3Aissue+is%3Aopen+-linked%3Apr+label%3A%22Good+First+Issue%22+no%3Aassignee) to help you get started. Please only pick issues that are not assigned to anyone, or if an issue has been assigned but has seen no response or activity for 2 weeks. Do not request to be assigned to issues that are actively being worked on. If you're interested in working on an issue without an assignee or one that has been inactive, comment on it to ask if you can be assigned.  If you have questions, please ask the [Lead](https://docs.openlibrary.org/developers/misc/project-management.html#triage) designated by the `Lead: @person` label on the issue.
+[Here's a list of good first issues](https://github.com/internetarchive/openlibrary/issues?q=is%3Aissue+is%3Aopen+-linked%3Apr+label%3A%22Good+First+Issue%22+no%3Aassignee) to help you get started. Please only pick issues that are not assigned to anyone, or if an issue has been assigned but has seen no response or activity for 2 weeks. Do not request to be assigned to issues that are actively being worked on. If you're interested in working on an issue without an assignee or one that has been inactive, comment on it to ask if you can be assigned. If you have questions, please ask the [Lead](https://docs.openlibrary.org/developers/misc/project-management.html#triage) designated by the `Lead: @person` label on the issue.
 
 ## Contributor Etiquette
 
@@ -113,34 +114,7 @@ A branch name consists of the: issue number, whether it is a feature/hotfix/refa
 ```
 
 ### Testing
-See https://docs.openlibrary.org/2_Developers/misc/Testing.html for more information.
-
-## pre-commit hooks
-
-Be confident in changing files you can check the quality (linter) with [pre-commit](https://pre-commit.com/index.html).
-It is used to inspect the snapshot that is about to be committed, to see if there are any syntax errors, typos, or a handful of other common issues.
-You can see the actions descriptions in [pre-commit-config.yml](https://github.com/internetarchive/openlibrary/blob/master/.pre-commit-config.yaml).
-
-The pre-commit is automatically run against open PRs. Install the pre-commit locally to avoid waiting for the PR checks to run in the cloud.
-
-### Installation
-
-```
-pip install pre-commit
-# or on mac you can run
-brew install pre-commit
-```
-
-After executing the last command, when you normally run `git commit`, pre-commit will also perform its checks.
-
-### Running manually
-
-```
-pre-commit run --files pre-commit-config.yml
-```
-
-> **_Warning:_**  If you don't clone with **ssh** then infogami will have pre-commit issues [You can read this section to resolve it](docker/README.md#cloning-the-open-library-repository).
-
+See https://docs.openlibrary.org/developers/tools/testing.html for more information.
 
 ### Submitting Pull Requests