added new descritpion for CHECK_QUESTION_NAME and REGEX_RESTRICTION

frontend/app/data/en.json

@@ -38,7 +38,7 @@
     "template": "Template Documentation",
     "templateName": "UniTartuCS Template",
     "templateLink": "https://docs.google.com/document/d/106xTDS6IG7fofL6Ju4JnqntjxLeBfBM_LIyjKtskFb8/edit",
-    "docLink": "https://docs.google.com/document/d/1IZWmkxqYYqBAYqW8uumiZ1k94muKS4IjpYQuOQ8-9WU/edit "
+    "docLink": "https://docs.google.com/document/d/1IZWmkxqYYqBAYqW8uumiZ1k94muKS4IjpYQuOQ8-9WU/edit"
   },
   "errors": {
     "UNKNOWN_QUESTION_TYPE": "Unknown question type",
@@ -48,10 +48,9 @@
     "INVALID_REGEX": "Invalid regex"
   },
   "warnings": {
-    "CHECK_QUESTION_NAME": "Check question name",
+    "CHECK_QUESTION_NAME": "Couldn't find the end of the name. Name should be followed by hypen (-).",
     "UNKNOWN_PARAGRAPH_TYPE": "Unknown paragraph type",
-    "REGEX_RESTRICTION": "Regex restriction"
-  },
+    "REGEX_RESTRICTION": "Moodle has some restrictions for regex. There is a list of meta characters which you cannot youse: . ^ $ * + { } \\ / . Read more about regex in Moodle: https://docs.moodle.org/404/en/Regular_Expression_Short-Answer_question_type. Coursera supports the Java regular expression format. Use a regular expression tester, like RegexPlanet, to check syntax: http://www.regexplanet.com/advanced/java/index.html",
   "question_types": {
     "SINGLE_CHOICE": "Single Choice",
     "MULTIPLE_CHOICE": "Multiple Choice",