Adds testable examples to be automatically pulled in redis.io docs (#2601)

* Adding examples

* Update readme

* Update Readme

* Remove unneeded lines. Added an examples.json file

* Update readme for examples

* More fixes

* Add example tags

* Update examples.json

* Rename

* Add another hide block

* Temporary test

* Add example id for lpush and lrange

* Update readme

* Update output text

* Improve examples

* Move examples test dir to doctests

* Add redis v7's ExpireAtNX, ExpireAtXX, ExpireAtGT, ExpireAtLT, PExpireNX, PExpireXX, PExpireGT, PExpireLT, PExpireAtNX, PExpireAtXX, PExpireAtGT, PExpireAtLT

feat: Add redis v7's NX, XX, GT, LT expireat, pexpire, pexpireat variants

* add tests for new commands

add tests to coverage for the new commands

* Adds github workflow to add docexamples tests. Flushes db before every test.

* Fixes broken workflow file

* Adds Igor’s suggestion of keeping the instructions for docexamples in one place

* Removes unneeded “Missing” section, because it was solved as a workflow

* Revert "add tests for new commands"

This reverts commit af12cb6bd6.

* Fixes review comments

* Specifies versions as strings instead of floats

---------

Co-authored-by: carner <icarners@gmail.com>

.github/workflows/doctests.yaml

@@ -0,0 +1,41 @@
+name: Documentation Tests
+
+on:
+  push:
+    branches: [master, examples]
+  pull_request:
+    branches: [master, examples]
+
+permissions:
+  contents: read
+
+jobs:
+  doctests:
+    name: doctests
+    runs-on: ubuntu-latest
+
+    services:
+      redis-stack:
+        image: redis/redis-stack-server:latest
+        options: >-
+          --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
+        ports:
+          - 6379:6379
+
+    strategy:
+      fail-fast: false
+      matrix:
+        go-version: [ "1.18", "1.19", "1.20" ]
+
+    steps:
+      - name: Set up ${{ matrix.go-version }}
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Test doc examples
+        working-directory: ./doctests
+        run: go test