Use past tense so it is clearer (#71)

Author: LegNeato

blog/2025-03-18-rust-cuda-update.mdx

@@ -25,7 +25,7 @@ As a reminder, our short-term goals were to stabilize and modernize the Rust CUD
 project by updating dependencies, merging outstanding PRs, and closing outdated issues.
 We've now accomplished these goals and stabilized the project.
 
-### Update to a newer Rust toolchain
+### Updated to a newer Rust toolchain
 
 Rust-CUDA is a collection of crates, one of which is
 [`rustc_codegen_nvvm`](https://github.com/Rust-GPU/Rust-CUDA/tree/main/crates/rustc_codegen_nvvm).
@@ -46,7 +46,7 @@ access to new language features.
 
 Jorge used a [draft PR](https://github.com/Rust-GPU/Rust-CUDA/pull/98) put together by <Gh user="apriori" /> way back in 2022 as a guide. Big thanks to both <Gh user="jorge-ortega" /> and <Gh user="apriori" /> for making this leap possible!
 
-### Experimental support for the latest CUDA tookit
+### Added experimental support for the latest CUDA tookit
 
 The [latest NVIDIA CUDA toolkit is
 `12.x`](https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html). When
@@ -63,7 +63,7 @@ Support for CUDA `12.x` remains experimental due to limited testing and ongoing
 ramp-up. Please [file issues](https://github.com/Rust-GPU/Rust-CUDA/issues) if
 encountered!
 
-### Fix CI
+### Fixed CI
 
 Rust-CUDA's CI was broken after three years of inactivity and there was significant
 technical debt.
@@ -80,7 +80,7 @@ NVIDIA GPUs. **If you want to sponsor some CI machines, get in touch!**
 
 Even without GPU tests, CI now provides a critical safety net for future development.
 
-### Merging outstanding PRs
+### Merged outstanding PRs
 
 We merged over 16 outstanding pull requests from over 12 contributors as far back as 2022. Some selected changes:
 
@@ -107,7 +107,7 @@ Thank you to all the (old) contributors:
 Sorry for your changes languishing for so long! We hope you come back and contribute
 again soon.
 
-### Merging new PRs
+### Merged new PRs
 
 Since the reboot, we merged over 22 new pull requests from over 7 new contributors:
 
@@ -116,7 +116,7 @@ Since the reboot, we merged over 22 new pull requests from over 7 new contributo
 
 Thank you to all of our new contributors!
 
-#### Project cleanups
+#### Cleaned up the project
 
 Rust-CUDA maintainer <Gh user="LegNeato" /> went through the project and closed most of the
 outdated issues and any pull requests that were no longer relevant. Little things like