[v10.0.x] Docs: Add missing step to install plugin doc (#76939)

* Docs: Add missing step to install plugin doc (#76853)

Add missing step to install plugin doc

(cherry picked from commit 03bf6d6ed4)

* Fix codespell issues

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>

---------

Signed-off-by: Jack Baldry <jack.baldry@grafana.com>
Co-authored-by: Rob Whelan <github@jtheory.com>
Co-authored-by: Jack Baldry <jack.baldry@grafana.com>

docs/sources/administration/api-keys/index.md

@@ -135,7 +135,7 @@ Complete the following steps to migrate from API keys to service accounts for AP
    This action generates a service account token.
 
 1. Store the ID and secret that the system returns to you.
-1. Pass the token in the `Authrorization` header, prefixed with `Bearer`.
+1. Pass the token in the `Authorization` header, prefixed with `Bearer`.
 
    This action authenticates API requests.
 

docs/sources/administration/plugin-management/index.md

@@ -100,6 +100,7 @@ To browse for available plugins:
 To install a plugin:
 
 1. In Grafana, click **Administration > Plugins** in the side navigation menu to view installed plugins.
+1. Click the **All** filter to browse all available plugins.
 1. Browse and find a plugin.
 1. Click on the plugin logo.
 1. Click **Install**.

docs/sources/administration/provisioning/index.md

@@ -370,8 +370,8 @@ By default, Grafana deletes dashboards in the database if the file is removed. Y
 
 {{% admonition type="note" %}}
 Provisioning allows you to overwrite existing dashboards
-which leads to problems if you re-use settings that are supposed to be unique.
-Be careful not to re-use the same `title` multiple times within a folder
+which leads to problems if you reuse settings that are supposed to be unique.
+Be careful not to reuse the same `title` multiple times within a folder
 or `uid` within the same installation as this will cause weird behaviors.
 {{% /admonition %}}