doc: rename Gogland to GoLand

This updates the name of the IDE and the capability it has.

Fixes #22784

Change-Id: Ief261324c86bc77a03071629f496f4d4d9df1b44
Reviewed-on: https://go-review.googlesource.com/79255Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

doc/editors.html

@@ -22,8 +22,8 @@ editing, navigation, testing, and debugging experience.
 <li><a href="https://github.com/fatih/vim-go">vim</a>: vim-go plugin provides Go programming language support</li>
 <li><a href="https://marketplace.visualstudio.com/items?itemName=lukehoban.Go">Visual Studio Code</a>:
 Go extension provides support for the Go programming language</li>
-<li><a href="https://www.jetbrains.com/go">Gogland</a>: Gogland is distributed either as a standalone IDE
-or as a plugin for the commercial IntelliJ Platform IDEs</li>
+<li><a href="https://www.jetbrains.com/go">GoLand</a>: GoLand is distributed either as a standalone IDE
+or as a plugin for IntelliJ IDEA Ultimate</li>
 <li><a href="https://atom.io/packages/go-plus">Atom</a>: Go-Plus is an Atom package that provides enhanced Go support</li>
 </ul>
 
@@ -44,7 +44,7 @@ The following feature matrix lists and compares the most significant features.
     <th></th>
     <th><img title="Vim Go" src="/doc/editors/vimgo.png"><br>vim</th>
     <th><img title="Visual Studio Code" src="/doc/editors/vscodego.png"><br>Visual Studio Code</th>
-    <th><img title="Gogland" src="/doc/editors/gogland.png"><br>Gogland</th>
+    <th><img title="GoLand" src="/doc/editors/goland.png"><br>GoLand</th>
     <th><img title="Go-Plus" src="/doc/editors/go-plus.png"><br>Atom</th>
   </tr>
   <tr>
@@ -159,7 +159,7 @@ The following feature matrix lists and compares the most significant features.
     <td>Auto generate tests for packages, files and identifiers</td>
     <td class="no">No</td>
     <td class="yes">Yes</td>
-    <td class="no">No</td>
+    <td class="yes">Yes</td>
     <td class="no">No</td>
   </tr>
   <tr>