Balance the brackets

Author: peternewman

index.html

@@ -78,7 +78,7 @@ <h2>Introduction</h2>
 
     <p>Existing methods (such as synthetic monitoring) provide a partial solution by placing monitoring nodes in predetermined geographic locations, but require additional infrastructure investments, and cannot provide truly global and near real-time availability data for real end users.</p>
 
-    <p>Network Error Logging (NEL) addresses this need by defining a mechanism enabling web applications to declare a reporting policy that can be used by the user agent to report network errors for a given origin.  A web application opts into using NEL by supplying a <a>NEL</a> HTTP response header field that describes the desired <a>NEL policy</a>. This policy instructs the user agent to log information about requests to that origin, and to attempt to deliver that information to a group of endpoints previously configured using the [[[REPORTING]].  As the name implies, NEL reports are primarily used to describe <em>errors</em>. However, in order to determine <em>rates</em> of errors across different client populations, we must also know how many <em>successful</em> requests are occurring; these successful requests can also be reported via the NEL mechanism.</p>
+    <p>Network Error Logging (NEL) addresses this need by defining a mechanism enabling web applications to declare a reporting policy that can be used by the user agent to report network errors for a given origin.  A web application opts into using NEL by supplying a <a>NEL</a> HTTP response header field that describes the desired <a>NEL policy</a>. This policy instructs the user agent to log information about requests to that origin, and to attempt to deliver that information to a group of endpoints previously configured using the [[[REPORTING]]].  As the name implies, NEL reports are primarily used to describe <em>errors</em>. However, in order to determine <em>rates</em> of errors across different client populations, we must also know how many <em>successful</em> requests are occurring; these successful requests can also be reported via the NEL mechanism.</p>
 
     <p>For example, if the user agent fails to fetch a resource from <code>https://www.example.com</code> due to an aborted TCP connection, the user agent would queue the following report via the Reporting API:</p>