Updated README.txt to README.md (#1375)

* H5Lexists docs: Removed reference to 1.8.16 since the change is the 1.8.x releases, HDFFV-11289

* H5Oget_info_by_name, name can be any object, not just a group

* Converted README.txt to README.md and updated files referring to README.txt to README.md.

* removed references to README.txt

* updated MANIFEST

1 files changed, 0 insertions, 80 deletions

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-HDF5 version 1.13.1-1 currently under development
-
-------------------------------------------------------------------------------
-Please refer to the release_docs/INSTALL file for installation instructions.
-------------------------------------------------------------------------------
-
-THE HDF GROUP
----------------
-
-The HDF Group is the developer of HDF5®, a high-performance software library and
-data format that has been adopted across multiple industries and has become a
-de facto standard in scientific and research communities.
-
-More information about The HDF Group, the HDF5 Community and the HDF5 software
-project, tools and services can be found at the Group's website.
-
-    https://www.hdfgroup.org/
-
-
-DOCUMENTATION
--------------
-This release is fully functional for the API described in the documentation.
-    https://portal.hdfgroup.org/display/HDF5/The+HDF5+API
-
-Full Documentation and Programming Resources for this release can be found at
-    https://portal.hdfgroup.org/display/HDF5
-
-See the RELEASE.txt file in the release_docs/ directory for information specific
-to the features and updates included in this release of the library.
-
-Several more files are located within the release_docs/ directory with specific
-details for several common platforms and configurations.
-
-    INSTALL - Start Here. General instructions for compiling and installing the library
-    INSTALL_CMAKE  - instructions for building with CMake (Kitware.com)
-    INSTALL_parallel - instructions for building and configuring Parallel HDF5
-    INSTALL_Windows and INSTALL_Cygwin - MS Windows installations.
-
-
-
-HELP AND SUPPORT
-----------------
-Information regarding Help Desk and Support services is available at
-
-    https://portal.hdfgroup.org/display/support/The+HDF+Help+Desk
-
-
-
-FORUM and NEWS
---------------
-The following public forums are provided for public announcements and discussions
-of interest to the general HDF5 Community.
-
-    Homepage of the Forum
-        https://forum.hdfgroup.org
-
-    News and Announcement
-        https://forum.hdfgroup.org/c/news-and-announcements-from-the-hdf-group
-
-    HDF5 and HDF4 Topics
-        https://forum.hdfgroup.org/c/hdf5
-
-These forums are provided as an open and public service for searching and reading.
-Posting requires completing a simple registration and allows one to join in the
-conversation.  Please read the following instructions pertaining to the Forum's
-use and configuration
-    https://forum.hdfgroup.org/t/quickstart-guide-welcome-to-the-new-hdf-forum
-
-
-SNAPSHOTS, PREVIOUS RELEASES AND SOURCE CODE
---------------------------------------------
-Periodically development code snapshots are provided at the following URL:
-    https://gamma.hdfgroup.org/ftp/pub/outgoing/hdf5/snapshots/
-
-Source packages for current and previous releases are located at:
-    https://portal.hdfgroup.org/display/support/Downloads
-
-Development code is available at our Github location:
-    https://github.com/HDFGroup/hdf5.git
-