Add missing parentheses for Vector# properties (#8961)

Author: oliverbooth

xml/System.Numerics/Vector2.xml

@@ -1502,7 +1502,7 @@ The behavior of this method changed in .NET 5. For more information, see [Behavi
       </ReturnValue>
       <Docs>
         <summary>Gets a vector whose 2 elements are equal to one.</summary>
-        <value>A vector whose two elements are equal to one (that is, it returns the vector <c>(1,1)</c>.</value>
+        <value>A vector whose two elements are equal to one (that is, it returns the vector <c>(1,1)</c>).</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -2880,7 +2880,7 @@ The behavior of this method changed in .NET 5. For more information, see [Behavi
       </ReturnValue>
       <Docs>
         <summary>Returns a vector whose 2 elements are equal to zero.</summary>
-        <value>A vector whose two elements are equal to zero (that is, it returns the vector <c>(0,0)</c>.</value>
+        <value>A vector whose two elements are equal to zero (that is, it returns the vector <c>(0,0)</c>).</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>

xml/System.Numerics/Vector3.xml

@@ -1584,7 +1584,7 @@
       </ReturnValue>
       <Docs>
         <summary>Gets a vector whose 3 elements are equal to one.</summary>
-        <value>A vector whose three elements are equal to one (that is, it returns the vector <c>(1,1,1)</c>.</value>
+        <value>A vector whose three elements are equal to one (that is, it returns the vector <c>(1,1,1)</c>).</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -2938,7 +2938,7 @@
       </ReturnValue>
       <Docs>
         <summary>Gets a vector whose 3 elements are equal to zero.</summary>
-        <value>A vector whose three elements are equal to zero (that is, it returns the vector <c>(0,0,0)</c>.</value>
+        <value>A vector whose three elements are equal to zero (that is, it returns the vector <c>(0,0,0)</c>).</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>

xml/System.Numerics/Vector4.xml

@@ -1597,7 +1597,7 @@ The behavior of this method changed in .NET 5. For more information, see [Behavi
           <format type="text/markdown"><![CDATA[  
   
 ## Remarks  
- A vector whose four elements are equal to one (that is, it returns the vector `(1,1,1,1)`.  
+ A vector whose four elements are equal to one (that is, it returns the vector `(1,1,1,1)`).  
   
  ]]></format>
         </remarks>
@@ -3124,7 +3124,7 @@ The behavior of this method changed in .NET 5. For more information, see [Behavi
       </ReturnValue>
       <Docs>
         <summary>Gets a vector whose 4 elements are equal to zero.</summary>
-        <value>A vector whose four elements are equal to zero (that is, it returns the vector <c>(0,0,0,0)</c>.</value>
+        <value>A vector whose four elements are equal to zero (that is, it returns the vector <c>(0,0,0,0)</c>).</value>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>