Add parameters section

Jenkinsfile

@@ -1,5 +1,23 @@
 pipeline {
     agent any 
+    parameters{
+        string(
+            defaultValue: 'annadnowak',
+            description: 'Kaggle username',
+            name: 'KAGGLE_USERNAME',
+            trim: false
+        ),
+        password(
+            defaultValue: '',
+            description: 'Kaggle token taken from kaggle.json file, as described in https://github.com/Kaggle/kaggle-api#api-credentials',
+            name: 'KAGGLE_KEY'
+        )
+        string(
+            defaultValue: '10'
+            description: 'CUTOFF',
+            name: 'CUTOFF'
+        )
+    }
     stages {
         stage('checkout: Check out from version control') {
             steps {
@@ -18,11 +36,7 @@ pipeline {
         }
         stage('archive artifacts') {
             steps {
-                archiveArtifacts 'test.csv'
-                archiveArtifacts 'data_shuf.csv'
-                archiveArtifacts 'validation.csv'
-                archiveArtifacts 'train.csv'
-                archiveArtifacts 'header.csv'
+                archiveArtifacts 'test.csv,data_shuf.csv,validation.csv,train.csv,header.csv'
             }
         }
     }