Tiny fix for the Security Headers doc

docs/en/UI/AspNetCore/Security-Headers.md

@@ -5,7 +5,7 @@ ABP Framework allows you to add frequently used security headers into your appli
 * `X-Content-Type-Options`: Tells the browser to not try and guess what a mime-type of a resource might be, and to just take what mime-type the server has returned.
 * `X-XSS-Protection`: This is a feature of Internet Explorer, Chrome, and Safari that stops pages from loading when they detect reflected cross-site scripting (XSS) attacks.
 * `X-Frame-Options`: This header can be used to indicate whether or not a browser should be allowed to render a page in a `<iframe>` tag. By specifying this header value as *SAMEORIGIN*, you can make it displayed in a frame on the same origin as the page itself.
-* `Content-Security-Policy`: This response header allows you to restrict which resources (such as JavaScript, CSS, images, manifests, etc.) can be loaded, and the URLs that they can be loaded from. This security header only will be added if you configure the `AbpSecurityHeadersOptions` class and enable it.
+* `Content-Security-Policy`: This response header allows you to restrict which resources (such as JavaScript, CSS, images, manifests, etc.) can be loaded, and the URLs that they can be loaded from. This security header will only be added if you configure the `AbpSecurityHeadersOptions` class and enable it.
 
 ## Configuration
 
@@ -40,6 +40,6 @@ app.UseAbpSecurityHeaders();
 
 > You can add this middleware into the `OnApplicationInitialization` method of your module class to register it to the request pipeline. This middleware is already configured in the [ABP Commercial Startup Templates](https://docs.abp.io/en/commercial/latest/startup-templates/index), so you don't need to manually add it if you are using one of these startup templates.
 
-After, you have registered the `UseAbpSecurityHeaders` middleware into the request pipeline, the defined security headers will be shown in the response headers as in the figure:
+After that, you have registered the `UseAbpSecurityHeaders` middleware into the request pipeline, the defined security headers will be shown in the response headers as in the figure below:
 
-![](../../images/security-response-headers.png)
+![](../../images/security-response-headers.png)