diff --git a/.gitignore b/.gitignore
index 6a6fc2e..f9ee5d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,8 +5,11 @@ Manifest.toml
 *.mp4
 *.pdf
 
-Solutions*.jl
+solutions.jl
 
-Day_2/resources/new_test.txt
+day-2/resources/new_test.txt
+day-3/resources/df2.csv
 
-Day_3/resources/df2.csv
+export
+!export/index.html
+!export/404.html
diff --git a/Project.toml b/Project.toml
index c39603e..ccd0eea 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,2 +1,3 @@
 [deps]
 Pluto = "c3e4b0f8-55cb-11ea-2926-15256bba5781"
+PlutoSliderServer = "2fc8631c-6f24-4c5b-bca7-cbb509c42db4"
diff --git a/Day_1/Day_1.jl b/day-1/main.jl
similarity index 100%
rename from Day_1/Day_1.jl
rename to day-1/main.jl
diff --git a/Day_1/Tasks_day_1.jl b/day-1/tasks.jl
similarity index 100%
rename from Day_1/Tasks_day_1.jl
rename to day-1/tasks.jl
diff --git a/Day_2/Day_2.jl b/day-2/main.jl
similarity index 100%
rename from Day_2/Day_2.jl
rename to day-2/main.jl
diff --git a/Day_2/resources/DNA.txt b/day-2/resources/DNA.txt
similarity index 100%
rename from Day_2/resources/DNA.txt
rename to day-2/resources/DNA.txt
diff --git a/Day_2/resources/test.txt b/day-2/resources/test.txt
similarity index 100%
rename from Day_2/resources/test.txt
rename to day-2/resources/test.txt
diff --git a/Day_2/Tasks_day_2.jl b/day-2/tasks.jl
similarity index 100%
rename from Day_2/Tasks_day_2.jl
rename to day-2/tasks.jl
diff --git a/Day_3/Day_3.jl b/day-3/main.jl
similarity index 100%
rename from Day_3/Day_3.jl
rename to day-3/main.jl
diff --git a/Day_3/resources/I_B.csv b/day-3/resources/I_B.csv
similarity index 100%
rename from Day_3/resources/I_B.csv
rename to day-3/resources/I_B.csv
diff --git a/Day_3/resources/fitting_task_data.csv b/day-3/resources/fitting_task_data.csv
similarity index 100%
rename from Day_3/resources/fitting_task_data.csv
rename to day-3/resources/fitting_task_data.csv
diff --git a/Day_3/Tasks_day_3.jl b/day-3/tasks.jl
similarity index 100%
rename from Day_3/Tasks_day_3.jl
rename to day-3/tasks.jl
diff --git a/Day_4/Day_4.jl b/day-4/main.jl
similarity index 100%
rename from Day_4/Day_4.jl
rename to day-4/main.jl
diff --git a/Day_4/Tasks_day_4.jl b/day-4/tasks.jl
similarity index 100%
rename from Day_4/Tasks_day_4.jl
rename to day-4/tasks.jl
diff --git a/Day_5/Day_5.jl b/day-5/main.jl
similarity index 100%
rename from Day_5/Day_5.jl
rename to day-5/main.jl
diff --git a/Day_5/resources/Matrix_1.txt b/day-5/resources/Matrix_1.txt
similarity index 100%
rename from Day_5/resources/Matrix_1.txt
rename to day-5/resources/Matrix_1.txt
diff --git a/Day_5/resources/Matrix_2.txt b/day-5/resources/Matrix_2.txt
similarity index 100%
rename from Day_5/resources/Matrix_2.txt
rename to day-5/resources/Matrix_2.txt
diff --git a/Day_5/resources/Matrix_3.txt b/day-5/resources/Matrix_3.txt
similarity index 100%
rename from Day_5/resources/Matrix_3.txt
rename to day-5/resources/Matrix_3.txt
diff --git a/Day_5/Tasks_day_5.jl b/day-5/tasks.jl
similarity index 100%
rename from Day_5/Tasks_day_5.jl
rename to day-5/tasks.jl
diff --git a/export.jl b/export.jl
new file mode 100644
index 0000000..92c46e6
--- /dev/null
+++ b/export.jl
@@ -0,0 +1,21 @@
+import PlutoSliderServer
+
+notebook_paths = [
+    "day-1/main.jl",
+    "day-1/tasks.jl",
+    "day-2/main.jl",
+    "day-2/tasks.jl",
+    "day-3/main.jl",
+    "day-3/tasks.jl",
+    "day-4/main.jl",
+    "day-4/tasks.jl",
+    "day-5/main.jl",
+    "day-5/tasks.jl",
+]
+
+PlutoSliderServer.export_directory(;
+    notebook_paths,
+    Export_create_index=false,
+    Export_offer_binder=false,
+    Export_output_dir="export",
+)
diff --git a/export/Project.toml b/export/Project.toml
deleted file mode 100644
index 7d5731d..0000000
--- a/export/Project.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[deps]
-PlutoSliderServer = "2fc8631c-6f24-4c5b-bca7-cbb509c42db4"
diff --git a/export/export.jl b/export/export.jl
deleted file mode 100644
index 9f82203..0000000
--- a/export/export.jl
+++ /dev/null
@@ -1,21 +0,0 @@
-import PlutoSliderServer
-
-notebook_paths = [
-    "../Day_1/Day_1.jl",
-    "../Day_1/Tasks_day_1.jl",
-    "../Day_2/Day_2.jl",
-    "../Day_2/Tasks_day_2.jl",
-    "../Day_3/Day_3.jl",
-    "../Day_3/Tasks_day_3.jl",
-    "../Day_4/Day_4.jl",
-    "../Day_4/Tasks_day_4.jl",
-    "../Day_5/Day_5.jl",
-    "../Day_5/Tasks_day_5.jl",
-]
-
-PlutoSliderServer.export_directory(;
-    notebook_paths,
-    Export_create_index=false,
-    Export_offer_binder=false,
-    Export_output_dir="export",
-)
diff --git a/export/index.html b/export/index.html
index b823625..e30b698 100644
--- a/export/index.html
+++ b/export/index.html
@@ -20,46 +20,46 @@
             <tr style="border-bottom: 1px solid black;">
                 <td style="padding: 12px;">Day 1</td>
                 <td style="padding: 12px;">
-                    <a href="/day-1">Main notebook</a>
+                    <a href="day-1/main.html">Main notebook</a>
                 </td>
                 <td style="padding: 12px;">
-                    <a href="tasks-day-1">Tasks notebook</a>
+                    <a href="day-1/tasks.html">Tasks notebook</a>
                 </td>
             </tr>
             <tr style="border-bottom: 1px solid black;">
                 <td style="padding: 12px;">Day 2</td>
                 <td style="padding: 12px;">
-                    <a href="/day-2">Main notebook</a>
+                    <a href="day-2/main.html">Main notebook</a>
                 </td>
                 <td style="padding: 12px;">
-                    <a href="tasks-day-2">Tasks notebook</a>
+                    <a href="day-2/tasks.html">Tasks notebook</a>
                 </td>
             </tr>
             <tr style="border-bottom: 1px solid black;">
                 <td style="padding: 12px;">Day 3</td>
                 <td style="padding: 12px;">
-                    <a href="/day-3">Main notebook</a>
+                    <a href="day-3/main.html">Main notebook</a>
                 </td>
                 <td style="padding: 12px;">
-                    <a href="tasks-day-3">Tasks notebook</a>
+                    <a href="day-3/tasks.html">Tasks notebook</a>
                 </td>
             </tr>
             <tr style="border-bottom: 1px solid black;">
                 <td style="padding: 12px;">Day 4</td>
                 <td style="padding: 12px;">
-                    <a href="/day-4">Main notebook</a>
+                    <a href="day-4/main.html">Main notebook</a>
                 </td>
                 <td style="padding: 12px;">
-                    <a href="tasks-day-4">Tasks notebook</a>
+                    <a href="day-4/tasks.html">Tasks notebook</a>
                 </td>
             </tr>
             <tr>
                 <td style="padding: 12px;">Day 5</td>
                 <td style="padding: 12px;">
-                    <a href="/day-5">Main notebook</a>
+                    <a href="day-5/main.html">Main notebook</a>
                 </td>
                 <td style="padding: 12px;">
-                    <a href="tasks-day-5">Tasks notebook</a>
+                    <a href="day-5/tasks.html">Tasks notebook</a>
                 </td>
             </tr>
         </table>