fix typos

Author: melezhik

docs/auth.md

@@ -1,18 +1,18 @@
 # Auth
 
-Sparky authentiction protocols
+Sparky authentication protocols
 
 # Synopsis
 
-Sparky comes with two authentiction protocols:
+Sparky comes with two authentication protocols:
 
 * Default 
 
 * Oauth2
 
 ## Default protocol
 
-Default protocl is a simples one, when you don't need anything fancy,
+Default protocol is a simplest one, when you don't need anything fancy,
 but authentication, just add these section to your `~/.sparky.yaml` file:
 
 ```yaml
@@ -50,7 +50,7 @@ projects:
 For more secure scenario use  [oauth2](https://oauth.net/2/) authentication 
 protocol.
 
-To enable ouath2, add following section to `~/sparky.yaml` configuration file (
+To enable oauth2, add following section to `~/sparky.yaml` configuration file (
 example for Gitlab provider):
 
 ```yaml
@@ -72,4 +72,4 @@ For now only GitLab oauth2 provider is supported
 
 ## ACL
 
-Sparky ACL allows to create access control lists to manage role based access to Sparky resources, see [docs/acl.md](https://github.com/melezhik/sparky/blob/master/docs/acl.md)
+Sparky ACL allows to create access control lists to manage role based access to Sparky resources, see [docs/acl.md](https://github.com/melezhik/sparky/blob/master/docs/acl.md)