diff --git a/la_chariotte/readMe.md b/la_chariotte/readMe.md
deleted file mode 100644
index 6e6799f..0000000
--- a/la_chariotte/readMe.md
+++ /dev/null
@@ -1,166 +0,0 @@
-Exemple de MCD en markdown avec mermaid : 
-
-
-```mermaid
-erDiagram
-CourseSubmission{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField title
-DateField date
-FSMField state
-}
-CourseSubmissionProduct{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-PositiveSmallIntegerField quantity
-}
-Pricing{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField name
-}
-Product{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField name
-CharField code
-BooleanField submission_enabled
-}
-ProductPrice{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-PositiveSmallIntegerField year
-CharField price_type
-DecimalField price_flat
-PositiveSmallIntegerField price_percent
-DecimalField price_percent_minimum
-CharField unit
-}
-ProductPriceRange{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-PositiveSmallIntegerField range_start
-PositiveSmallIntegerField range_end
-DecimalField unit_price
-DecimalField minimum
-}
-ProductPricePackLine_included_products{
-AutoField id
-}
-ProductPricePackLine{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField quantity_type
-PositiveSmallIntegerField quantity
-}
-Contract{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-DateField start
-DateField end
-FileField file
-}
-Transaction_products{
-AutoField id
-}
-Transaction{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-PositiveIntegerField debit
-PositiveIntegerField credit
-BooleanField unlimited_credit
-}
-Quote{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField external_ref
-FSMField state
-}
-QuoteLine{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-TextField label
-DecimalField unit_price
-DecimalField quantity
-}
-Invoice{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField external_ref
-FSMField state
-}
-InvoiceLine{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-TextField label
-DecimalField unit_price
-DecimalField quantity
-}
-User{
-CharField password
-DateTimeField last_login
-BooleanField is_superuser
-CharField username
-CharField first_name
-CharField last_name
-EmailField email
-BooleanField is_staff
-BooleanField is_active
-DateTimeField date_joined
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-ManyToManyField groups
-ManyToManyField user_permissions
-}
-Organization{
-UUIDField id
-DateTimeField created_on
-DateTimeField updated_on
-CharField code
-CharField representative
-FileField signature
-FileField logo
-}
-CourseSubmission||--|{User : user
-CourseSubmission||--|{Organization : organization
-CourseSubmissionProduct||--|{CourseSubmission : course_submission
-CourseSubmissionProduct||--|{Product : product
-ProductPrice||--|{Pricing : pricing
-ProductPrice||--|{Product : product
-ProductPriceRange||--|{ProductPrice : product_price
-ProductPricePackLine_included_products||--|{ProductPricePackLine : productpricepackline
-ProductPricePackLine_included_products||--|{Product : product
-ProductPricePackLine||--|{ProductPrice : product_price
-ProductPricePackLine}|--|{Product : included_products
-Contract||--|{Organization : organization
-Contract||--|{Pricing : pricing
-Transaction_products||--|{Transaction : transaction
-Transaction_products||--|{Product : product
-Transaction||--|{Invoice : invoice
-Transaction||--|{CourseSubmission : course_submission
-Transaction}|--|{Product : products
-Quote||--|{Organization : organization
-QuoteLine||--|{Quote : quote
-QuoteLine||--|{Product : product
-Invoice||--|{Organization : organization
-InvoiceLine||--|{Invoice : invoice
-InvoiceLine||--|{Product : product
-Organization||--|{User : representative_user
-Organization||--|{Organization : parent
-
-```
diff --git a/readMe.md b/readMe.md
index 0575610..910b1a4 100644
--- a/readMe.md
+++ b/readMe.md
@@ -1,3 +1,11 @@
 # La Chariotte
 
-La Chariotte est une application web sous licence libre Affera GPL, développée et maintenue par [Hashbang](https://hashbang.fr/).
\ No newline at end of file
+La Chariotte est une application web sous licence libre Affera GPL, développée et maintenue par [Hashbang](https://hashbang.fr/).
+
+## Lancer les tests
+
+Avec pytest,
+
+```bash
+pytest
+```