chore(docs): update supabase_admin wording (#33584)

* chore(docs): update supabase_admin wording

* chore: add spelling exceptions

---------

Co-authored-by: Charis Lam <26616127+charislam@users.noreply.github.com>

apps/docs/content/guides/database/postgres/roles.mdx

@@ -117,7 +117,7 @@ For running commands via the Supabase UI.
 
 ### `supabase_admin`
 
-Supabase Administrative role for maintaining your database.
+An internal role Supabase uses for administrative tasks, such as running upgrades and automations.
 
 ## Resources
 

apps/docs/content/guides/platform/your-monthly-invoice.mdx

@@ -42,7 +42,7 @@ The following invoice was issued on January 6, 2025 with the previous billing cy
 
 1. The final amount due
 2. Fixed subscription fee for the current billing cycle
-3. Usage based fee for Compute for the previous billing cycle. There were two projects (wsmmedyqtlrvbcesxdew, wwxdpovgtfcmcnxwsaad) running 744 hours (24 hours \* 31 days). These projects incurred $10 in Compute fees each. With $10 in Compute Credits deducted, the final Compute fees are $10.
+3. Usage based fee for Compute for the previous billing cycle. There were two projects (`wsmmedyqtlrvbcesxdew`, `wwxdpovgtfcmcnxwsaad`) running 744 hours (24 hours \* 31 days). These projects incurred $10 in Compute fees each. With $10 in Compute Credits deducted, the final Compute fees are $10.
 4. Usage based fee for Custom Domain for the previous billing cycle. There is no free usage quota for Custom Domain. You get charged for the 744 hours (24 hours \* 31 days) a Custom Domain was active. The final Custom Domain fees are $10.19.
 5. Usage based fee for Egress for the previous billing cycle. There is a free usage quota of 250 GB for Egress. You get charged for usage beyond 250 GB only, meaning for 2,119.47 GB. The final Egress fees are $190.75.
 6. Usage based fee for Monthly Active Users for the previous billing cycle. There is a free usage quota of 100,000 users. With 141 users there is no charge for this line item.

supa-mdx-lint/Rule003Spelling.toml

@@ -22,6 +22,7 @@ allow_list = [
     "[A-Za-z0-9_-]+(\\.[A-Z-a-z0-9_-]+)+(\\/[A-Za-z0-9_-]+)*",
     "[Aa]dd-ons?",
     "[Aa]llowlists?",
+    "[Aa]utomations?",
     "[Aa]utovacuum(s|ing|ed)?",
     "[Bb]ackend",
     "[Bb]ackoff",
@@ -321,9 +322,6 @@ allow_list = [
     "vecs",
     "vs",
     "watchOS",
-    # Project ref used on page with monthly invoice breakdown
-    "wsmmedyqtlrvbcesxdew",
-    "wwxdpovgtfcmcnxwsaad"
 ]
 
 prefixes = ["bi", "over", "pre", "un"]