Clean up education category (#6281)

* Clean up education category

* Clean up CSN

* Fix syntax error

* Update csn.se.json
Co-authored-by: Carlgo11 <Carlgo11@users.noreply.github.com>

entries/a/antagning.se.json

@@ -6,7 +6,8 @@
       "twitter": "antagningse"
     },
     "keywords": [
-      "education"
+      "education",
+      "universities"
     ],
     "regions": [
       "se"

entries/c/collegeboard.org.json

@@ -7,7 +7,8 @@
       "twitter": "collegeboard"
     },
     "keywords": [
-      "education"
+      "education",
+      "universities"
     ],
     "regions": [
       "us"

entries/c/csn.se.json

 {
   "CSN": {
     "domain": "csn.se",
-    "url": "https://www.csn.se",
     "tfa": [
-      "custom-software",
-      "custom-hardware"
+      "custom-software"
+    ],
+    "custom-software": [
+      "BankID"
     ],
     "documentation": "https://tjanster.csn.se/bas/vanligaFragor.do",
     "keywords": [
       "education"
     ],
     "regions": [
-      "us"
+      "se"
     ]
   }
-}
\ No newline at end of file
+}

entries/c/cwnp.com.json

-{
-  "Certified Wireless Network Professional (CWNP)": {
-    "domain": "cwnp.com",
-    "url": "https://www.cwnp.com",
-    "img": "cwnp.com.png",
-    "contact": {
-      "email": "customercare@cwnp.com",
-      "facebook": "OfficialCWNP",
-      "twitter": "CWNP"
-    },
-    "keywords": [
-      "education"
-    ]
-  }
-}
\ No newline at end of file

entries/k/knowbe4.com.json

@@ -7,7 +7,7 @@
     ],
     "documentation": "https://support.knowbe4.com/hc/en-us/articles/225681448",
     "keywords": [
-      "education"
+      "security"
     ]
   }
 }
\ No newline at end of file

entries/m/mysqa.org.uk.json

@@ -8,6 +8,9 @@
     },
     "keywords": [
       "education"
+    ],
+    "regions": [
+      "gb"
     ]
   }
 }
\ No newline at end of file

entries/u/ucas.com.json

@@ -6,7 +6,8 @@
       "twitter": "ucas_online"
     },
     "keywords": [
-      "education"
+      "education",
+      "universities"
     ],
     "regions": [
       "gb"