add spellcheckers

.github/workflows/spellcheck.yml

@@ -0,0 +1,21 @@
+name: spellcheck
+
+on:
+  pull_request:
+  push:
+    branches: [master]
+
+jobs:
+  codespell:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: codespell-project/actions-codespell@v2
+        with:
+          check_filenames: true
+
+  typos:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: crate-ci/typos@master

README.md

@@ -902,7 +902,7 @@ You'll receive an email once the data is imported.
 
 ### MaxMind integration
 
-To use MaxMind you need to create an account [here.](https://www.maxmind.com/en/geolite2/signup) Once you have your account details, you can add [MAXMIND_LICENSE_KEY](#maxmind_license_key) and [MAXMIND_EDITION](#maxmind_edition) environmental valiables to your [plausible-conf.env](./plausible-conf.env) and the databases would be automatically downloaded and kept up to date. Note that using city-level databases like MaxMind's GeoLite2-City requires ~1GB more RAM.
+To use MaxMind you need to create an account [here.](https://www.maxmind.com/en/geolite2/signup) Once you have your account details, you can add [MAXMIND_LICENSE_KEY](#maxmind_license_key) and [MAXMIND_EDITION](#maxmind_edition) environmental variables to your [plausible-conf.env](./plausible-conf.env) and the databases would be automatically downloaded and kept up to date. Note that using city-level databases like MaxMind's GeoLite2-City requires ~1GB more RAM.
 
 ## FAQ