diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 4ad1123..6feebea 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,7 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="a321fd91-c97c-4f17-b620-fd9934708617" name="Default Changelist" comment="">
-      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main.rs" beforeDir="false" afterPath="$PROJECT_DIR$/src/main.rs" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/out/" />
     <ignored path="$PROJECT_DIR$/target/" />
@@ -14,32 +14,11 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="false">
+      <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/src/main.rs">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="360">
-              <caret line="24" column="32" lean-forward="true" selection-start-line="24" selection-start-column="32" selection-end-line="24" selection-end-column="32" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/Cargo.toml">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="75">
-              <caret line="5" column="15" lean-forward="true" selection-start-line="5" selection-start-column="15" selection-end-line="5" selection-end-column="65" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/README.md">
-          <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-            <state split_layout="SPLIT">
-              <first_editor relative-caret-position="420">
-                <caret line="28" column="3" selection-start-line="28" selection-start-column="3" selection-end-line="28" selection-end-column="3" />
-              </first_editor>
-              <second_editor />
+            <state relative-caret-position="406">
+              <caret line="53" column="67" selection-start-line="53" selection-start-column="67" selection-end-line="53" selection-end-column="67" />
             </state>
           </provider>
         </entry>
@@ -95,8 +74,8 @@
         <option value="$PROJECT_DIR$/src/error.rs" />
         <option value="$PROJECT_DIR$/Cargo.toml" />
         <option value="$PROJECT_DIR$/LICENSE" />
-        <option value="$PROJECT_DIR$/src/main.rs" />
         <option value="$PROJECT_DIR$/README.md" />
+        <option value="$PROJECT_DIR$/src/main.rs" />
       </list>
     </option>
   </component>
@@ -353,27 +332,27 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/main.rs">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="360">
-          <caret line="24" column="32" lean-forward="true" selection-start-line="24" selection-start-column="32" selection-end-line="24" selection-end-column="32" />
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
+        <state split_layout="SPLIT">
+          <first_editor relative-caret-position="420">
+            <caret line="28" column="3" lean-forward="true" selection-start-line="28" selection-start-column="3" selection-end-line="28" selection-end-column="3" />
+          </first_editor>
+          <second_editor />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/Cargo.toml">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="75">
-          <caret line="5" column="15" lean-forward="true" selection-start-line="5" selection-start-column="15" selection-end-line="5" selection-end-column="65" />
+        <state relative-caret-position="330">
+          <caret line="22" lean-forward="true" selection-start-line="22" selection-end-line="22" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="420">
-            <caret line="28" column="3" selection-start-line="28" selection-start-column="3" selection-end-line="28" selection-end-column="3" />
-          </first_editor>
-          <second_editor />
+    <entry file="file://$PROJECT_DIR$/src/main.rs">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="406">
+          <caret line="53" column="67" selection-start-line="53" selection-start-column="67" selection-end-line="53" selection-end-column="67" />
         </state>
       </provider>
     </entry>
diff --git a/src/main.rs b/src/main.rs
index c081bcf..0e9192f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -51,7 +51,7 @@ fn main() {
                 .short("i")
                 .long("id")
                 .value_name("ID")
-                .help("Id of the book to download. Copy the last to url parts on the overview page to get it (for example bbb/0003).")
+                .help("Id of the book to download. Copy the last two url parts on the overview page to get it (for example bbb/0003).")
                 .takes_value(true),
         )
         .setting(AppSettings::ArgRequiredElseHelp);
@@ -67,6 +67,8 @@ fn main() {
             println!("ID is a required argument:");
             println!();
             app.clone().print_help().ok();
+            println!();
+
             return;
         }
     };