Fixed a typo and finished a sentence in the documentation.

docs/docs/repositories.md

@@ -67,12 +67,13 @@ Keyring support is enabled using the [keyring library](https://pypi.org/project/
 
 
     ```
     ```
     Poetry will fallback to Pip style use of keyring so that backends like
     Poetry will fallback to Pip style use of keyring so that backends like
-    Microsoft's [artifacts-keyring](https://pypi.org/project/artifacts-keyring/). It will need to be properly
-    installed into Poetry's virtualenv, preferrably by installing a plugin.
+    Microsoft's [artifacts-keyring](https://pypi.org/project/artifacts-keyring/) get a change to retrieve
+    valid credentials. It will need to be properly installed into Poetry's virtualenv,
+    preferrably by installing a plugin.
 
 
     If you are letting Poetry manage your virtual environments you will want a virtualenv
     If you are letting Poetry manage your virtual environments you will want a virtualenv
     seeder installed in Poetry's virtualenv that installs the desired keyring backend
     seeder installed in Poetry's virtualenv that installs the desired keyring backend
-    during `poetry install`. To again use Azure DecOps as an example: [azure-devops-artifacts-helpers](https://pypi.org/project/azure-devops-artifacts-helpers/)
+    during `poetry install`. To again use Azure DevOps as an example: [azure-devops-artifacts-helpers](https://pypi.org/project/azure-devops-artifacts-helpers/)
     provides such a seeder. This would of course best achieved by installing a Poetry plugin
     provides such a seeder. This would of course best achieved by installing a Poetry plugin
     if it exists for you use case instead of doing it yourself.
     if it exists for you use case instead of doing it yourself.
     ```
     ```