Updates documentation formatting, grammar, links

Correct indentation of lists, code blocks

Update faq.md

Update CONTRIBUTING.md

Update development.md

Update advanced_usage.md

Update administration.md

Update configuration.md

Update configuration.md

Update advanced_usage.md

Update faq.md

docs/administration.md

@@ -68,23 +68,23 @@ $ docker-compose down
 
 After that, [make a backup](#backup).
 
-1. If you pull the image from the docker hub, all you need to do is:
+1.  If you pull the image from the docker hub, all you need to do is:
 
-   ```shell-session
-   $ docker-compose pull
-   $ docker-compose up
-   ```
+    ```shell-session
+    $ docker-compose pull
+    $ docker-compose up
+    ```
 
-   The docker-compose files refer to the `latest` version, which is
-   always the latest stable release.
+    The docker-compose files refer to the `latest` version, which is
+    always the latest stable release.
 
-2. If you built the image yourself, do the following:
+1.  If you built the image yourself, do the following:
 
-   ```shell-session
-   $ git pull
-   $ docker-compose build
-   $ docker-compose up
-   ```
+    ```shell-session
+    $ git pull
+    $ docker-compose build
+    $ docker-compose up
+    ```
 
 Running `docker-compose up` will also apply any new database migrations.
 If you see everything working, press CTRL+C once to gracefully stop
@@ -470,7 +470,7 @@ The issues detected by the sanity checker are as follows:
 - Inaccessible thumbnails due to improper permissions.
 - Documents without any content (warning).
 - Orphaned files in the media directory (warning). These are files
-  that are not referenced by any document im paperless.
+  that are not referenced by any document in paperless.
 
 ```
 document_sanity_checker