Update an outdated part in the top page

Author: seratch

docs-src/index.rst

@@ -48,7 +48,30 @@ Of course, you can always pull the source code directly into your project:
 .. code-block:: bash
 
 	git clone https://github.com/slackapi/python-slackclient.git
-	pip install -r requirements.txt
+
+And then, save a few lines of code as ``./test.py``.
+
+.. code-block:: python
+
+    # test.py
+    import sys
+    # Load the local source directly
+    sys.path.insert(1, "./python-slackclient")
+    # Enable debug logging
+    import logging
+    logging.basicConfig(level=logging.DEBUG)
+    # Verify it works
+    from slack import WebClient
+    client = WebClient()
+    api_response = client.api_test()
+
+You can run the code this way.
+
+.. code-block:: bash
+
+	python test.py
+
+It's also good to try on the Python REPL.
 
 Getting Help
 ************

docs/index.html

@@ -258,9 +258,27 @@ <h2>Installation<a class="headerlink" href="#installation" title="Permalink to t
 </div>
 <p>Of course, you can always pull the source code directly into your project:</p>
 <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>git clone https://github.com/slackapi/python-slackclient.git
-pip install -r requirements.txt
 </pre></div>
 </div>
+<p>And then, save a few lines of code as <code class="docutils literal notranslate"><span class="pre">./test.py</span></code>.</p>
+<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="c1"># test.py</span>
+<span class="kn">import</span> <span class="nn">sys</span>
+<span class="c1"># Load the local source directly</span>
+<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s2">&quot;./python-slackclient&quot;</span><span class="p">)</span>
+<span class="c1"># Enable debug logging</span>
+<span class="kn">import</span> <span class="nn">logging</span>
+<span class="n">logging</span><span class="o">.</span><span class="n">basicConfig</span><span class="p">(</span><span class="n">level</span><span class="o">=</span><span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">)</span>
+<span class="c1"># Verify it works</span>
+<span class="kn">from</span> <span class="nn">slack</span> <span class="kn">import</span> <span class="n">WebClient</span>
+<span class="n">client</span> <span class="o">=</span> <span class="n">WebClient</span><span class="p">()</span>
+<span class="n">api_response</span> <span class="o">=</span> <span class="n">client</span><span class="o">.</span><span class="n">api_test</span><span class="p">()</span>
+</pre></div>
+</div>
+<p>You can run the code this way.</p>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>python test.py
+</pre></div>
+</div>
+<p>It’s also good to try on the Python REPL.</p>
 </div>
 <div class="section" id="getting-help">
 <h2>Getting Help<a class="headerlink" href="#getting-help" title="Permalink to this headline">¶</a></h2>