diff --git a/Cargo.toml b/Cargo.toml
index 63c1846..00acb22 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,10 +46,12 @@ miniconf = "0.1.0"
 shared-bus = {version = "0.2.2", features = ["cortex-m"] }
 serde-json-core = "0.3"
 
+# rtt-target bump
 [dependencies.rtt-logger]
 git = "https://github.com/quartiq/rtt-logger.git"
 rev = "70b0eb5"
 
+# rewrite
 [dependencies.mcp23017]
 git = "https://github.com/mrd0ll4r/mcp23017.git"
 rev = "61933f857a"
@@ -58,6 +60,7 @@ rev = "61933f857a"
 features = ["stm32h743v", "rt", "unproven", "ethernet", "quadspi"]
 version = "0.9.0"
 
+# link.x section start/end
 [patch.crates-io.cortex-m-rt]
 git = "https://github.com/rust-embedded/cortex-m-rt.git"
 rev = "a2e3ad5"