npx: add page (#1857)

pages/common/npx.md

@@ -0,0 +1,15 @@
+# npx
+
+> Execute binaries from `npm` packages.
+
+- Execute the binary from a given npm module:
+
+`npx {{module_name}}`
+
+- In case a package has multiple binaries, specify the package name along with the binary:
+
+`npx -p {{package_name}} {{module_name}}`
+
+- View help contents:
+
+`npx --help`