Update M1 Finance (#8259)

Signed-off-by: Aaron Torres <[email protected]>
Co-authored-by: H. Kamran <[email protected]>

Author: aarontorres0

entries/m/m1finance.com.json renamed to entries/m/m1.com.json

@@ -1,10 +1,10 @@
 {
-    "M1 Finance": {
-      "domain": "m1finance.com",
+    "M1": {
+      "domain": "m1.com",
       "tfa": [
         "totp"
       ],
-      "documentation": "https://support.m1finance.com/hc/en-us/articles/221056367",
+      "documentation": "https://help.m1.com/en/articles/9331936",
       "categories": [
         "finance",
         "investing"