Update the poetry/pdm add slide

slides.md

@@ -509,12 +509,10 @@ Hatch
 transition: fade
 ---
 
-# Adding a Dependency with a Single Command
+# Add a Dependency with a Single Command
 
 Instead of maintaining multiple files and configs, adopt a modern package manager.
 
-Some examples are: `poetry`, `hatch`, `pdm`, all are CLI tools.
-
 Adding a dependency follows an idiomatic form:
 
 <div grid="~ rows-3 cols-2 gap-2" m="-t-2" style="grid-template-rows: auto 1fr;">
@@ -528,11 +526,10 @@ Terminal
 </div>
 
 <div>
-
+<code>poetry</code>:
 ```sh
 $ poetry add torch
 ```
-
 </div>
 
 <div>
@@ -546,7 +543,7 @@ torch = "^2.0.1"
 </div>
 
 <div>
-
+<code>pdm</code> / <code>hatch</code>:
 ```sh
 $ pdm add torch
 ```