diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index ba0d692..3cebbfe 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,7 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="5022b617-d045-4c00-9e44-77877d4e36e1" name="Default Changelist" comment="">
-      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
@@ -78,7 +78,7 @@
       <workItem from="1573814474713" duration="138000" />
       <workItem from="1574039614897" duration="3076000" />
       <workItem from="1574818735019" duration="15573000" />
-      <workItem from="1574905325139" duration="1912000" />
+      <workItem from="1574905325139" duration="4622000" />
     </task>
     <task id="LOCAL-00001" summary="官网1.0">
       <created>1574907211978</created>
@@ -87,7 +87,21 @@
       <option name="project" value="LOCAL" />
       <updated>1574907211978</updated>
     </task>
-    <option name="localTasksCounter" value="2" />
+    <task id="LOCAL-00002" summary="官网1.0">
+      <created>1574907330291</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1574907330291</updated>
+    </task>
+    <task id="LOCAL-00003" summary="更改图片高清度">
+      <created>1574911910603</created>
+      <option name="number" value="00003" />
+      <option name="presentableId" value="LOCAL-00003" />
+      <option name="project" value="LOCAL" />
+      <updated>1574911910603</updated>
+    </task>
+    <option name="localTasksCounter" value="4" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -106,6 +120,7 @@
   </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="官网1.0" />
-    <option name="LAST_COMMIT_MESSAGE" value="官网1.0" />
+    <MESSAGE value="更改图片高清度" />
+    <option name="LAST_COMMIT_MESSAGE" value="更改图片高清度" />
   </component>
 </project>
\ No newline at end of file
diff --git a/images/thumbnail.jpg b/images/thumbnail.jpg
new file mode 100644
index 0000000..7934ccf
Binary files /dev/null and b/images/thumbnail.jpg differ