Typo: s/npm build/npm run build/g

Author: jankeromnes

CHANGELOG.md

@@ -646,7 +646,7 @@ Line endings for pasted content are now normalized to the editor's [preferred en
 
 ### New features
 
-The core is now maintained as a number of small files, using ES6 syntax and modules, under the `src/` directory. A git checkout no longer contains a working `codemirror.js` until you `npm build` (but when installing from NPM, it is included).
+The core is now maintained as a number of small files, using ES6 syntax and modules, under the `src/` directory. A git checkout no longer contains a working `codemirror.js` until you `npm run build` (but when installing from NPM, it is included).
 
 The [`refresh`](https://codemirror.net/doc/manual.html#event_refresh) event is now documented and stable.
 

doc/releases.html

@@ -412,7 +412,7 @@ <h2>Version 5.x</h2>
     <li><a href="https://codemirror.net/mode/javascript">javascript mode</a>: Improve support for class expressions. Support TypeScript optional class properties, the <code>abstract</code> keyword, and return type declarations for arrow functions.</li>
     <li><a href="https://codemirror.net/mode/css">css mode</a>: Fix highlighting of mixed-case keywords.</li>
     <li><a href="https://codemirror.net/doc/manual.html#addon_closebrackets">closebrackets addon</a>: Improve behavior when typing a quote before a string.</li>
-    <li>The core is now maintained as a number of small files, using ES6 syntax and modules, under the <code>src/</code> directory. A git checkout no longer contains a working <code>codemirror.js</code> until you <code>npm build</code> (but when installing from NPM, it is included).</li>
+    <li>The core is now maintained as a number of small files, using ES6 syntax and modules, under the <code>src/</code> directory. A git checkout no longer contains a working <code>codemirror.js</code> until you <code>npm run build</code> (but when installing from NPM, it is included).</li>
     <li>The <a href="https://codemirror.net/doc/manual.html#event_refresh"><code>refresh</code></a> event is now documented and stable.</li>
   </ul>