chore: update crate metadata

Co-authored-by: chrysn <[email protected]>

Cargo.toml

@@ -37,6 +37,7 @@ repository = "https://github.com/openwsn-berkeley/lakers/"
 license = "BSD-3-Clause"
 readme = "shared/README.md"
 keywords = ["iot", "security", "protocol", "crypto", "edhoc"]
+categories = [ "no-std::no-alloc", "network-programming", "embedded" ]
 
 [workspace.dependencies]
 

lib/Cargo.toml

@@ -7,6 +7,7 @@ license.workspace = true
 description = "An implementation of EDHOC (RFC 9528)"
 repository.workspace = true
 keywords.workspace = true
+categories.workspace = true
 
 [dependencies]
 lakers-shared.workspace = true

shared/Cargo.toml

@@ -9,6 +9,7 @@ repository.workspace = true
 # It's implied, but still better for consistency to have it explicit.
 readme.workspace = true
 keywords.workspace = true
+categories.workspace = true
 
 [dependencies]
 pyo3 = { version = "0.20.2", features = ["extension-module"], optional = true }