[Feature:System] Add Self Account Creation docs

_docs/student/account/self_account_creation.md

@@ -0,0 +1,7 @@
+---
+category: Student > Courses & Profile
+title: Self Account Creation
+---
+
+
+## 

_docs/sysadmin/configuration/self_account_creation.md

@@ -0,0 +1,47 @@
+---
+category: Student > Courses & Profile
+title: Self Account Creation
+---
+
+### Enable Self Account Creation
+
+Currently the only way to enable users to create their own accounts is to manually edit the submitty.json configuration file. The default location for this
+file is `/usr/local/submitty/config/submitty.json`. By default, `self_account_creation_allowed` is set to `false`. To enable it, change this to `true`. 
+
+### Email and User ID Requirements
+
+Below are the current accepted requirements for user_ids. 
+* If `all` is set to `true`, then `length` parameters are the only parameters checked. 
+
+* If `require_name` is true, then the user_id must start with and contain a certain amount of characters from the given name and/or family name. 
+
+* If the user does not have the character amount for the given part of the name, then !add fix!
+
+* `given_first` determines whether the given name or family name must come first. (e.g. Test User -> userte vs teuser)
+
+```json
+"user_id_requirements": {
+    "all": true,
+    "require_name": false,
+    "min_length": 6,
+    "max_length": 25,
+    "name_requirements": {
+      "given_first": false,
+      "given_name": 2,
+      "family_name": 4
+    },
+    "require_email": false,
+    "email_requirements": {
+      "whole_email": false,
+      "whole_prefix": false,
+      "prefix_count": 6
+    }
+}
+```
+
+```json
+"accepted_emails": {
+    "gmail.com": true,
+    "rpi.edu": true
+}
+```

navtreedata.js

@@ -174,6 +174,7 @@ var NAVTREE =
                 [ "Course Creation", "/sysadmin/configuration/course_creation", null ],
                 [ "Ansible Course Creation", "/sysadmin/configuration/ansible_course_creation", null ],
                 [ "Setting up Version Control", "/sysadmin/configuration/version_control", null ],
+                [ "Self Account Creation", "/sysadmin/configuration/self_account_creation", null ],
                 [ "SAML Authentication", "/sysadmin/configuration/saml_authentication", null ],
                 [ "Email Configuration", "/sysadmin/configuration/email_configuration", null ],
                 [ "Registration Feed", "/sysadmin/configuration/registration_feed", null ],