Fixed spelling and grammar

Author: jedidja

StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json

@@ -130,7 +130,7 @@
             },
             "allowedNamespaceComponentTerms": {
               "type": "array",
-              "description": "Allowed namesapce component terms, such as ones beginning with a lowercase letter.",
+              "description": "Allowed namespace component terms, such as ones beginning with a lowercase letter.",
               "default": [],
               "items": {
                 "type": "string",

documentation/Configuration.md

@@ -322,7 +322,7 @@ The following property is used to configure allowable namespace component terms
 | --- | --- | --- | --- |
 | `allowedNamespaceComponentTerms` | `[ ]` | 1.2.0 | Specifies namespace component terms that are allowed to be used. See the example below for more information. |
 
-The following example shows a settings file which allows the namespace such as `eBay` or `Apple.iPod`.
+The following example shows a settings file which allows namespaces such as `eBay` or `Apple.iPod`.
 
 ```json
 {