Fix a bunch of broken links within the docs

docs/extensions/graph-explorer/_index.md

@@ -8,4 +8,4 @@ geekdocFilePath: _index.md
 geekdocCollapseSection: true
 ---
 
-This service embeds [Graph-Explorer](https://github.com/owncloud/ocis/graph-explorer) to provide a UI for ownCloud Infinite Scale.
+This service embeds [Graph-Explorer](https://github.com/owncloud/ocis/tree/master/graph-explorer) to provide a UI for ownCloud Infinite Scale.

docs/extensions/onlyoffice/license.md

@@ -7,4 +7,4 @@ geekdocEditPath: edit/master/docs/extensions/onlyoffice
 geekdocFilePath: license.md
 ---
 
-This project is licensed under the [Apache 2.0](https://github.com/owncloud/ocis/onlyoffice/blob/master/LICENSE) license. For the license of the used libraries you have to check the respective sources.
+This project is licensed under the [Apache 2.0](https://github.com/owncloud/ocis/blob/master/onlyoffice/LICENSE) license. For the license of the used libraries you have to check the respective sources.

docs/extensions/settings/glossary.md

@@ -2,7 +2,7 @@
 title: "Glossary"
 date: 2020-05-04T12:35:00+01:00
 weight: 80
-geekdocRepo: https://github.com/owncloud/oci
+geekdocRepo: https://github.com/owncloud/ocis
 geekdocEditPath: edit/master/docs/extensions/settings
 geekdocFilePath: glossary.md
 ---

docs/extensions/storage/users.md

@@ -28,7 +28,7 @@ export STORAGE_USERS_DRIVER=json
 export STORAGE_USERS_JSON=/path/to/users.json
 ```
 
-For the format of the users.json have a look at the [reva examples](https://github.com/cs3org/reva/blob/master/examples/separate/users.demo.json)
+For the format of the users.json have a look at the [reva examples](https://github.com/cs3org/reva/blob/master/examples/oc-phoenix/users.demo.json)
 
 ### LDAP driver