docs(README): fix package names

lockfile/filtering/README.md

@@ -1,11 +1,11 @@
-# @pnpm/filter-lockfile
+# @pnpm/lockfile.filtering
 
 > Filters a lockfile
 
 ## Install
 
 ```
-pnpm add @pnpm/filter-lockfile
+pnpm add @pnpm/lockfile.filtering
 ```
 
 ## License

lockfile/pruner/README.md

@@ -1,11 +1,11 @@
-# @pnpm/prune-lockfile
+# @pnpm/lockfile.pruner
 
 > Prune a pnpm-lock.yaml
 
 ## Install
 
 ```
-pnpm add @pnpm/prune-lockfile
+pnpm add @pnpm/lockfile.pruner
 ```
 
 ## License

lockfile/utils/README.md

@@ -1,11 +1,11 @@
-# @pnpm/lockfile-utils
+# @pnpm/lockfile.utils
 
 > Utils for dealing with pnpm-lock.yaml
 
 ## Install
 
 ```
-pnpm add @pnpm/lockfile-utils
+pnpm add @pnpm/lockfile.utils
 ```
 
 ## License

lockfile/walker/README.md

@@ -1,11 +1,11 @@
-# @pnpm/lockfile-walker
+# @pnpm/lockfile.walker
 
 > Walk over all the dependencies in a lockfile
 
 ## Install
 
 ```
-pnpm add @pnpm/lockfile-walker
+pnpm add @pnpm/lockfile.walker
 ```
 
 ## License