DOC Quote all yaml service definitions (#285)

Strings starting with a `%` must be explicitly quoted in YAML.

en/02_Developer_Guides/01_Templates/03_Requirements.md

@@ -275,7 +275,7 @@ SilverStripe\Core\Injector\Injector:
   SilverStripe\Assets\Storage\GeneratedAssetHandler.custom-generated-assets:
     class: SilverStripe\Assets\Flysystem\GeneratedAssets
     properties:
-      Filesystem: %$League\Flysystem\Filesystem.custom-filesystem
+      Filesystem: '%$League\Flysystem\Filesystem.custom-filesystem'
   # Assign this generator to the requirements builder
   SilverStripe\View\Requirements_Backend:
     properties:
@@ -370,7 +370,7 @@ SilverStripe\Core\Injector\Injector:
   SilverStripe\View\Requirements_Backend:
     properties:
       MinifyCombinedFiles: true
-      Minifier: %$MyProject\MyMinifier
+      Minifier: '%$MyProject\MyMinifier'
 ```
 
 [alert]

en/02_Developer_Guides/05_Extending/05_Injector.md

@@ -316,12 +316,12 @@ name: MyController
 ---
 App\MyController:
   dependencies:
-    permissions: %$App\PermissionService
+    permissions: '%$App\PermissionService'
 SilverStripe\Core\Injector\Injector:
   App\PermissionService:
     class: App\RestrictivePermissionService
     properties:
-      database: %$App\MySQLDatabase
+      database: '%$App\MySQLDatabase'
   App\MySQLDatabase:
     constructor:
       0: 'dbusername'
@@ -432,7 +432,7 @@ SilverStripe\Core\Injector\Injector:
     class: App\JSONServiceImplementor
     properties:
       Serialiser: App\JSONSerialiser
-  App\GZIPJSONProvider: %$App\JSONServiceDefinition
+  App\GZIPJSONProvider: '%$App\JSONServiceDefinition'
 ```
 
 `Injector::inst()->get(GZIPJSONProvider::class)` will then be an instance of `App\JSONServiceImplementor` with the injected
@@ -448,7 +448,7 @@ SilverStripe\Core\Injector\Injector:
   App\Connector:
     properties:
       AsString: true
-  App\ServiceConnector: %$Connector
+  App\ServiceConnector: '%$Connector'
 ```
 
 Both `App\Connector` and `App\ServiceConnector` will have the `AsString` property set to true, but the resulting

en/02_Developer_Guides/05_Extending/06_Aspects.md

@@ -106,7 +106,7 @@ Next, this should be bound into an instance of the `Aspect` class
 SilverStripe\Core\Injector\Injector:
   MySQLWriteDbAspect:
     properties:
-      writeDb: %$WriteMySQLDatabase
+      writeDb: '%$WriteMySQLDatabase'
 ```
 
 Next, we need to define the database connection that will be used for all non-write queries
@@ -135,10 +135,10 @@ SilverStripe\Core\Injector\Injector:
   MySQLDatabase:
     class: AopProxyService
     properties:
-      proxied: %$ReadMySQLDatabase
+      proxied: '%$ReadMySQLDatabase'
       beforeCall:
         query: 
-          - %$MySQLWriteDbAspect
+          - '%$MySQLWriteDbAspect'
 ```
 
 The two important parts here are in the `properties` declared for the object.
@@ -163,7 +163,7 @@ SilverStripe\Core\Injector\Injector:
         database: read_database
   MySQLWriteDbAspect:
     properties:
-      writeDb: %$WriteMySQLDatabase
+      writeDb: '%$WriteMySQLDatabase'
   WriteMySQLDatabase:
     class: MySQLDatabase
     constructor:
@@ -175,10 +175,10 @@ SilverStripe\Core\Injector\Injector:
   MySQLDatabase:
     class: AopProxyService
     properties:
-      proxied: %$ReadMySQLDatabase
+      proxied: '%$ReadMySQLDatabase'
       beforeCall:
         query: 
-          - %$MySQLWriteDbAspect
+          - '%$MySQLWriteDbAspect'
 ```
 
 ## Changing what a method returns

en/02_Developer_Guides/09_Security/03_Authentication.md

@@ -71,7 +71,7 @@ SilverStripe\Core\Injector\Injector:
   SilverStripe\Security\Security:
     properties:
       Authenticators:
-        myauthenticator: %$MyVendor\MyProject\Authenticator\MyAuthenticator
+        myauthenticator: '%$MyVendor\MyProject\Authenticator\MyAuthenticator'
 ```
 If there is no authenticator registered, `Authenticator` will try to fall back on the default provided authenticator (`default`), which can be changed using the following config, replacing the MemberAuthenticator with your authenticator:
 ```yaml
@@ -84,7 +84,7 @@ SilverStripe\Core\Injector\Injector:
   SilverStripe\Security\Security:
     properties:
       Authenticators:
-        default: %$MyVendor\MyProject\Authenticator\MyAuthenticator
+        default: '%$MyVendor\MyProject\Authenticator\MyAuthenticator'
 ```
 
 By default, the `SilverStripe\Security\MemberAuthenticator\MemberAuthenticator` is seen as the default authenticator until it's explicitly set in the config.
@@ -136,12 +136,12 @@ SilverStripe\Core\Injector\Injector:
     properties:
       LDAPSettings:
         - URL: https://my-ldap-location.com
-      CascadeInTo: %$SilverStripe\Security\MemberAuthenticator\SessionAuthenticationHandler
+      CascadeInTo: '%$SilverStripe\Security\MemberAuthenticator\SessionAuthenticationHandler'
   SilverStripe\Security\AuthenticationHandler:
     class: SilverStripe\Security\RequestAuthenticationHandler
     properties:
       Handlers:
-        ldap: %$MyProject\LDAP\Authenticator\LDAPAuthenticator
+        ldap: '%$MyProject\LDAP\Authenticator\LDAPAuthenticator'
 ```
 
 CascadeInTo is used to defer login or logout actions to other authenticators, after the first one has been logged in. In the example of LDAP authenticator, this is useful to check e.g. the validity of the Session (is the user still logged in?) and if not, or it's LDAP login period has expired, only then validate against the external service again, limiting the amount of requests to the external service.

en/02_Developer_Guides/09_Security/05_Rate_Limiting.md

@@ -53,7 +53,7 @@ Or if you want to apply your middleware to a specific route:
 SilverStripe\Control\Director:
   rules:
     special/section:
-      Controller: %$MyRateLimitedController
+      Controller: '%$MyRateLimitedController'
 ```
 
 ## Applying rate limiting across an entire application