generic error docs

docs/API.md

@@ -1,3 +1,56 @@
+### Global Errors
+
+#### Database Write Error
+
+**Description:** occurs when a write is attempted against the database and fails. 
+
+**Status Code:** `500`
+
+**Response Body:**
+
+```js
+{
+	Code: 500,
+	Errors: []String{
+		"Could not write to database",
+	},
+}
+```
+
+#### Database Write Error
+
+**Description:** occurs when a read is attempted against the database and fails. 
+
+**Status Code:** `500`
+
+**Response Body:**
+
+```js
+{
+	Code: 500,
+	Errors: []String{
+		"Could not read from database",
+	},
+}
+```
+
+#### Internal Server Error
+
+**Description:** occurs with a generic internal server error
+
+**Status Code:** `500`
+
+**Response Body:**
+
+```js
+{
+	Code: 500,
+	Errors: []String{
+		"Internal server error",
+	},
+}
+```
+
 ### `/api/users`
 
 #### `GET /api/users/{id}`
@@ -6,7 +59,7 @@
 
 **URL parameters:** 
 
-- `id` -- the user's ID. 
+- `id` The user's ID. 
 
 **Query parameters:** N/A
 
@@ -38,7 +91,7 @@ User{
 
 **URL parameters:** 
 
-- `id` -- the user's ID. 
+- `id` The user's ID. 
 
 **Query parameters:** N/A