Fix TypeScript compile errors when compiing for source

README.md

@@ -63,6 +63,21 @@ To install the both the server extension and (prebuilt) lab extension, enter the
 pip install jupyterlab-github
 ```
 
+Alternatively, build from source and install with:
+
+```bash
+pip install .
+```
+
+Upon successful installation, `jupyterlab_github` should appear in the list of extensions:
+
+```bash
+jupyter labextension list
+JupyterLab v3.6.4
+/opt/conda/share/jupyter/labextensions
+        @jupyterlab/github v3.0.1 enabled OK (python, jupyterlab_github)
+```
+
 After restarting JupyterLab, the extension should work, and you can experience
 the joys of being rate-limited first-hand!
 

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "declaration": true,
+    "lib": ["es2015", "dom", "esnext.asynciterable"],
     "noImplicitAny": true,
     "strictNullChecks": true,
     "noEmitOnError": true,
@@ -18,7 +19,8 @@
     "rootDir": "src",
     "strict": true,
     "types": [],
-    "jsx": "react"
+    "jsx": "react",
+    "skipLibCheck": true
   },
   "include": ["src/*"]
 }