diff --git a/.testing/README.md b/.testing/README.md
index adc56e56cd..ef02bcfa09 100644
--- a/.testing/README.md
+++ b/.testing/README.md
@@ -229,6 +229,7 @@ configurations in the MOM6-examples repository.
 - `tc2`: An ALE configuration based on tc1 with tides
   - `tc2.a`: Use sigma, PPM_H4 and no tides
 - `tc3`: An open-boundary condition (OBC) test based on `circle_obcs`
+- `tc4`: Sponges and initialization using I/O
 
 
 ## Code coverage
diff --git a/ac/README.md b/ac/README.md
index e77878aefc..f50275c3a0 100644
--- a/ac/README.md
+++ b/ac/README.md
@@ -147,7 +147,7 @@ and `LDFLAGS` so that `configure` can locate them.
 Exported environment variables such as `FC` or `FCFLAGS` will be passed to the
 corresponding `configure` scripts.
 
-The following configuration options are also provided by, which can be used to
+The following configuration options are also provided, which can be used to
 specify the git URL and commit of the dependencies.
 
 `MKMF_URL` (*default:* https://github.com/NOAA-GFDL/mkmf.git)