Update help (#5331)

* [help] updated drive_client_2.0_for_windows_10

* [help] updated 'How to use encrypted libraries'

* [help] encrypted libraries: removed the text containing a link which links to manual.seafile.com

* [help] drive client for windows: fixup

* [help] updated screenshots

* [help] manage_library_as_wiki: removed outdated content(about functions no longer exist)

seahub/help/templates/help/drive_client_2.0_for_windows_10.html

@@ -46,4 +46,11 @@
 
 <p><b>{% trans "How do I clean the cache?" %}</b></p>
 <p>{% blocktrans %}You can manually choose which folders or files to be cached locally. If you find a folder consumes too much space, just choose to "Free up space" on that folder and all cached files in that folder will be cleaned. There is no need to set cache cleaning time and cache size limit as in SeaDrive 1.0. Because placeholders are just normal files created on your local disk, your cache size is only limited by the available disk space on your computer.{% endblocktrans %}</p>
+
+<p><b>{% trans "How to remove left-over SeaDrive shortcuts in Windows Explorer?" %}</b></p>
+<p>{% blocktrans %}The "SeaDrive" shortcut in Windows Explorer won't disappear after you exit SeaDrive progrme or switch Seafile accounts in SeaDrive. This is an intended behavior. You don't need to remove them if you still need to access the account later.{% endblocktrans %}</p>
+<p>{% blocktrans %}In some corner cases, the "SeaDrvie" shortcut will be left-over in Windows Explorer and you want to remove it.{% endblocktrans %}</p>
+<p>{% blocktrans %}You can usually remove those shortcuts by uninstalling SeaDrive program and choose "Remove account information" in the promt dialog.{% endblocktrans %}</p>
+<p>{% blocktrans %}If uninstallation doesn't remove the shortcuts successfully, you can remove the SeaDrive shortcut in Windows Explorer by editing the registry. Open the path "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\" in registry editor. Remove the sub-keys correspond to the shortcut you want to remove.{% endblocktrans %}</p>
+
 {% endblock %}

seahub/help/templates/help/encrypted_libraries.html

@@ -9,7 +9,7 @@
 
 <p>{% trans "When creating an encrypted library:" %}
 <ul>
-    <li>{% trans "If you create an encrypted library in the web app, the password is sent to the server. The server use this password to create the library. But it doesn't store the plain text password." %}</li>
+    <li>{% trans "If you create an encrypted library in the web app, the password is sent to the server. The server uses this password to create the library. But it doesn't store the plain text password." %}</li>
     <li>{% blocktrans %}If you create an encrypted library from a local folder with the desktop client (see <a href="{{SITE_ROOT}}help/install_sync/">file syncing</a>), the password is not sent to the server.{% endblocktrans %}</li>
 </ul>
 </p>
@@ -17,9 +17,10 @@
 <p>{% trans "When you access the encrypted library:" %}
 <ul>
     <li>{% trans "If you use web app, you have to input the password to the server. The server will cache the password in encrypted format for 1 hour. It won't store the password on disk." %}</li>
-    <li>{% trans "If you use desktop client to sync the library, the password is not sent to the server. The client decrypt and encrypt file contents locally. The plain text password is not stored on the client disk too." %}</li>
+    <li>{% trans "If you use desktop client to sync the library, the password is not sent to the server. The client decrypts and encrypts file contents locally. The plain text password is not stored on the client disk either." %}</li>
+    <li>{% trans "iOS client supports client side encryption since version 2.1.6. Android client supports it since version 2.1.0." %}</li>
 </ul>
 </p>
 
-<p>{% trans "Note that encrypted library only encrypt the contents of the files, but not the folder and file names." %}</p>
+<p>{% trans "Note that encrypted library only encrypts the contents of the files, but not the folder and file names." %}</p>
 {% endblock %}

seahub/help/templates/help/manage_library_as_wiki.html

@@ -14,7 +14,7 @@
 <img src="{{ MEDIA_URL }}img/help/markdown_editor.png" alt="Markdown Editor" />
 <p>{% blocktrans %}The change history of a Markdown file can be easily accessed by clicking the "File History" button in the menu on top of the editor interface.{% endblocktrans %}</p>
 <img src="{{ MEDIA_URL }}img/help/file_history.png" alt="File history" />
-<p>{% trans "You can open a hidden side bar on the right side of the Markdown editor. Table of contents, file information, formatting suggestions, and collaborative commenting are provided in this side bar." %}</p>
+<p>{% trans "You can open a hidden side bar on the right side of the Markdown editor. Table of contents, file information, and collaborative commenting are provided in this side bar." %}</p>
 <img src="{{ MEDIA_URL }}img/help/editor_side_bar.png" alt="Markdown Editor Side Bar" />
 <h4 id="file-tagging-and-related-documents">{% trans "File tagging and related documents" %}</h4>
 <p>{% trans "File tagging is an important feature for knowledge management. Seafile allows users to define tags for each library and apply tags to files. Tags can be managed from the side bar of the Markdown editor, or from the file browser interface." %}</p>
@@ -22,6 +22,4 @@
 <img src="{{ MEDIA_URL }}img/help/tags_from_file_browser.png" alt="Tags from file browser" />
 <p>{% trans "The file browser interface provides a summary of all file tags in the current library." %}</p>
 <img src="{{ MEDIA_URL }}img/help/tags_summary.png" alt="Tags summary" />
-<p>{% blocktrans %}You can also add related files to a Markdown document from the "File Information" tab in the side bar.{% endblocktrans %}</p>
-<img src="{{ MEDIA_URL }}img/help/related_files.png" alt="Related files" />
 {% endblock %}