Raise minimum version to Java 11

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [8, 11, 17, 21]
+        java: [11, 17, 21]
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
@@ -32,7 +32,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v2
         with:
-          java-version: 8
+          java-version: 11
           distribution: 'zulu'
 
       - name: Build with coverage
@@ -50,7 +50,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v2
         with:
-          java-version: 8
+          java-version: 11
           distribution: 'zulu'
 
       - name: Android Lint checks

README.md

@@ -23,9 +23,9 @@ full library with a nice API and the following features:
 * Flexible (manipulate the AST after parsing, customize HTML rendering)
 * Extensible (tables, strikethrough, autolinking and more, see below)
 
-The library is supported on Java 8 or later. It should work on Java 7
-and Android too, but that is on a best-effort basis, please report
-problems. For Android the minimum API level is 19, see the
+The library is supported on Java 11 and later. It should work on Android too,
+but that is on a best-effort basis, please report problems. For Android the
+minimum API level is 19, see the
 [commonmark-android-test](commonmark-android-test) directory.
 
 Coordinates for core library (see all on [Maven Central]):