Prepare release v3.1.3 (mdn#9321)

Author: ddbeck

RELEASE_NOTES.md

@@ -1,5 +1,20 @@
 # Release notes
 
+## [v3.1.3](https://github.com/mdn/browser-compat-data/releases/tag/v3.1.3)
+
+March 4, 2021
+
+### Notable changes
+
+- `api.SVGFECompositeElement.in` replaces `api.SVGFECompositeElement.in1`, fixing a misidentified attribute ([#9074](https://github.com/mdn/browser-compat-data/pull/9074)).
+
+### Statistics
+
+- 13 contributors have changed 87 files with 771 additions and 480 deletions in 28 commits ([`v3.1.2...v3.1.3`](https://github.com/mdn/browser-compat-data/compare/v3.1.2...v3.1.3))
+- 13,028 total features
+- 767 total contributors
+- 3,253 total stargazers
+
 ## [v3.1.2](https://github.com/mdn/browser-compat-data/releases/tag/v3.1.2)
 
 - The following withdrawn features have been removed as irrelevant:

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "description": "Browser compatibility data provided by MDN Web Docs",
   "main": "index.js",
   "types": "index.d.ts",