docs: fix indentation in README

README.md

@@ -11,38 +11,38 @@ A smart contract that manages issuing & verifying university certificates, built
 ⸻⸻⸻⸻⸻⸻⸻⮞ Unicerts properties ⮜⸻⸻⸻⸻⸻⸻⸻
 
 - supports_adding_students:
-	enabled?: true
-	requirement: "not callable by admin"
+    enabled?: true
+    requirement: "not callable by admin"
 - supports_retrieving_students:
-	enabled?: true
-	types:
-		getStudent: "a student can only get his own data"
-		getStudents: "only callable by admin"
+    enabled?: true
+    types:
+        getStudent: "a student can only get his own data"
+        getStudents: "only callable by admin"
 - supports_retrieving_certificates:
-	enabled?: true
-	types:
-		getCertificate: "called by anyone"
-		getCertificates: "only callable by admin"
-		getStudentCertificates: "only callable by admin or the concerned student"
+    enabled?: true
+    types:
+        getCertificate: "called by anyone"
+        getCertificates: "only callable by admin"
+        getStudentCertificates: "only callable by admin or the concerned student"
 - supports_requesting_certificates:
-	enabled?: true
-	requirements:
-		1: "only callable by students"
-		2: "cert should not be already registered"
+    enabled?: true
+    requirements:
+        1: "only callable by students"
+        2: "cert should not be already registered"
 - supports_reviewing_certificates:
-	enabled?: true
-	requirements:
-		1: "only callable by admin"
-		2: "cert should be already registered and pending"
+    enabled?: true
+    requirements:
+        1: "only callable by admin"
+        2: "cert should be already registered and pending"
 - supports_issuing_certificates:
-	enabled?: true
-	requirements:
-		1: "only callable by admin"
-		2: "student should exist"
-		3: "cert should not be already registered"
+    enabled?: true
+    requirements:
+        1: "only callable by admin"
+        2: "student should exist"
+        3: "cert should not be already registered"
 - supports_checking_certificates_validities:
-	enabled?: true
-	requirements: "cert should be already registered"
+    enabled?: true
+    requirements: "cert should be already registered"
 ```
 
 ## ❄ Testing and Development