updated docs

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/application-dev/reference/apis/js-apis-ability-context.md

@@ -4,7 +4,7 @@
 > The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-Implements ability context. This module is inherited from **Context**.
+Implements the ability context. This module is inherited from **Context**.
 
 
 ## Attributes

en/application-dev/reference/apis/js-apis-extension-context.md

@@ -4,7 +4,7 @@
 > The initial APIs of this module are supported since API 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
-Implements extension context. This module is inherited from **Context**.
+Implements the extension context. This module is inherited from **Context**.
 
 
 ## Attributes