trivial: fix underline too short warnings

these warnings clutter up the sphinx output
and make it hard to see real problems

docs/conda_integration.rst

@@ -97,7 +97,7 @@ We utilize `mulled <https://github.com/mulled/mulled>`_ with `involucro <https:/
 Here is a short introduction:
 
 Search for conda-based containers
-~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This will search for containers in the biocontainers organisation.
 
@@ -106,7 +106,7 @@ This will search for containers in the biocontainers organisation.
    $ mulled-search -s vsearch -o biocontainers
 
 Build all packages from bioconda from the last 24h
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The BioConda community is building a container for every package they create with a command similar to this:
 
@@ -117,7 +117,7 @@ The BioConda community is building a container for every package they create wit
          --involucro-path ./involucro --recipes-dir ./bioconda-recipes --diff-hours 25 build
 
 Building Docker containers for local Conda packages
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Conda packages can be tested with creating a busybox-based container for this particular package in the following way.
 This also demonstrates how you can build a container locally and on-the-fly.
@@ -148,7 +148,7 @@ The ``--0`` indicates the build version of the conda package. It is recommended
 you will override already existing images. For Python Conda packages this extension might look like this ``--py35_1``.
 
 Build, test and push a conda-forge package to biocontainers
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. note:: You need to have write access to the biocontainers repository
 

docs/examples.rst

@@ -6,7 +6,7 @@ BioContainers in Examples
 In this section we provide a set of examples about how to use BioContainers in your analysis. Please feel free to contribute to this help with your own examples.
 
 Peptide MS search engine (Tide)
--------------------------
+-------------------------------
 
 Let’s run a proteomics search engine to identified proteins using `Tide <http://crux.ms/commands/tide-index.html>`_. Proteomics data analysis is dominated by database-based search engines strategies. Amount Search Engines, **Tide** is one of the most popular nowadays.
 

docs/getting_started.rst

@@ -4,7 +4,7 @@ Getting started with Docker
 ============================
 
 Docker Configuration
----------------
+--------------------
 
 `Docker <https://www.docker.com/>`__ is the world’s leading platform for software containerization. Docker includes multiple tools and components such as: `docker <https://docs.docker.com/>`__, `docker engine <https://docs.docker.com/engine/installation/>`__, `docker hub <https://docs.docker.com/docker-hub/>`__.
 

docs/running_example.rst

@@ -85,7 +85,7 @@ Now that you have enough information to start comparing sequences using BLAST, y
 We hope that this short example can shed some light on how important and easy it is to run containerized software.
 
 Run everything in one go
-~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~
 
   .. code-block:: bash
 

docs/singularitycontainers.rst

@@ -1,5 +1,5 @@
 .. _singularitycontainers
 
 Using Singularity containers
-=========================
+============================
 

docs/what_is_biocontainers.rst

@@ -57,7 +57,7 @@ When a container is deployed and the developer closes the issue in GitHub, the u
 .. note:: You can read other sections about :doc:`conda_integration` and :doc:`singularitycontainers`
 
 Reporting a problem with a container
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 If the user finds a problem with a container an issue should be opened in
 the `container repository <https://github.com/BioContainers/containers/issues>`__, the user should use the **broken tag** (`see tags <https://github.com/BioContainers/containers/labels>`_). Developers of the project will pick-up the issue and deploy a new version of the container. A message will be delivered when the container has been fixed.
@@ -74,7 +74,7 @@ BioContainers build the docker containers from two different sources the `Docker
 In order to be able to contribute to BioContainers you should be able to create a BioConda recipe or a Dockerfile recipe.
 
 Create a BioConda recipe
-~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. note:: Before you start please read the Conda documentation and `how to setup conda in your machine <https://conda.io/projects/conda-build/en/latest/source/user-guide/tutorials/index.html>`__
 
@@ -87,7 +87,7 @@ In summary should follow these steps:
 After the PR gets merged, a Conda package gets created and the corresponding docker container get pushed into `Quay.io Registry <https://quay.io/organization/biocontainers>`__  and the `BioContainers Registry <https://biocontainers.pro/#/registry>`__
 
 Create a Dockerfile recipe
-~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This is a standard template for creating a new Dockerfile for BioContainers: