Move histograms

Concern that users would scroll past link to histograms so have moved them over to main results page.

django/microscopy_data/templates/self_similarity_hist.html

-{% extends "base.html" %}
-{% block content %}
-    <h2>Self-Similarity Histograms</h2>
-    <br>
-    <p>Self-similarity histograms and statistics for both thinned (left) and unthinned (right) data have been calculated. 
-        The dashed red line on both graphs represents the mean. 
-    </p>
-    <br>
-    <div class="image-container">
-        <div class="image-wrapper-half">
-            {% if self_sim_figure_thinned_ready %}
-                <img src="{% url 'microscopy_data:download_histogram_thinned' data.id %}" alt="thinned self-similarity histogram">
-            {% else %}
-                <p>The thinned Self-Similarity Histogram is not ready yet - please check back soon.</p>
-            {% endif %}
-        </div>
-        <div class="image-wrapper-half">
-            {% if self_sim_figure_ready %}
-                <img src="{% url 'microscopy_data:download_histogram' data.id %}" alt="self-similarity histogram">
-            {% else %}
-                <p>The Self-Similarity Histogram is not ready yet - please check back soon. </p>
-            {% endif %}
-        </div>
-    </div>
-
-    
-    <div class="help-section">
-        <h3>Help Section</h3>
-        <p>To access our Self-Similarity Interpretation Guide, <a href="{% url 'microscopy_data:self_similarity_guide' %}">click here.</a></p>
-    </div>
-    
-{% endblock %}
\ No newline at end of file