Add licenses/tos as suggested by #22

LICENSES/cve-tou.md

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+# Terms of Use
+
+## License
+
+**Submissions:** For all materials you submit to the Common Vulnerabilities and
+Exposures (CVE®), you hereby grant to The MITRE Corporation (MITRE) and all CVE
+Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge,
+royalty-free, irrevocable copyright license to reproduce, prepare derivative
+works of, publicly display, publicly perform, sublicense, and distribute such
+materials and derivative works. Unless required by applicable law or agreed to
+in writing, you provide such materials on an "AS IS" BASIS, WITHOUT WARRANTIES
+OR CONDITIONS OF ANY KIND, either express or implied, including, without
+limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT,
+MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE.
+
+**CVE Usage:** MITRE hereby grants you a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable copyright license to reproduce, prepare
+derivative works of, publicly display, publicly perform, sublicense, and
+distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for
+such purposes is authorized provided that you reproduce MITRE's copyright
+designation and this license in any such copy.
+
+## Disclaimers
+
+ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE
+PROVIDED ON AN "AS IS" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE
+REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF
+TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
+INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
+MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 

LICENSES/nvd-tou.md

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+# Terms of Use
+
+The National Vulnerability Database (NVD) was created by the National Institute
+of Standards and Technology (NIST) and is being made available as a public
+service. The NVD offers some of its public data in machine-readable format via
+an Application Programming Interface ("API"). This service is offered subject
+to this Terms of Use and NIST Website Policies (collectively, the "Terms of Use"
+or "TOU"). 
+
+## Use
+
+The NVD API is intended to be used to develop a service or services to search,
+display, analyze, retrieve, view and otherwise "get" information from NVD data.
+
+Examples of specific use cases are described in the guidance on the NVD’s
+website. Enterprise scale development that uses the NVD should consult this
+guidance.
+
+## Attribution
+
+Services which utilize or access the NVD API are asked to display the following
+notice prominently within the application: "This product uses the NVD API but is
+not endorsed or certified by the NVD."
+
+You may use the NVD name in order to identify the source of API content subject
+to these rules. You may not use the NVD name, to imply endorsement of any
+product, service, or entity, not-for-profit, commercial or otherwise.
+
+## Modification or False Representation of Content
+
+If you modify the content accessed through the API, you may not attribute the
+source as the NVD.
+
+## Use Limitations
+
+Your use of the API may be subject to certain limitations on access, calls, or
+use as set forth within these Agreements or otherwise provided by the NVD. If
+the NVD’s administrators believe that you have attempted to exceed or circumvent
+these limits, or misuse access to this system, your ability to access the API
+and/or the NVD may be temporarily or permanently blocked. The NVD may monitor
+your use of the API to improve the service or to ensure access limitations are
+not exceeded.
+
+Without an API key, you may make a number of queries equal to the public rate
+limits posted at nvd.nist.gov/developers. More than the public rate limit
+requires that you register for an API key. The key will become part of your data
+request. Keys should not be used by, or shared with, individuals or organizations
+other than the original requestor.
+
+Queries from a business or organization having multiple requestors might employ
+a proxy service or firewall. This may make all of the users of that business or
+organization to appear to have the same IP address. If multiple employees were
+making queries, the rate limits are for the user’s proxy server/firewall, not
+the individual user.
+
+A unique API key is suggested for any mobile or web application that makes a
+number of requests based on dynamically changing information. Rate limits may be
+reached by the total number of requests from all instances when the application
+queries the NVD API, even if multiple users access your application through
+different IP addresses.
+
+## Disclaimer of Warranties
+
+The API is provided "as is" and on an "as-available" basis. The NVD hereby
+disclaim all warranties of any kind, express or implied, including without
+limitation the warranties of merchantability, fitness for a particular purpose,
+and non-infringement. The NVD makes no warranty that the API will be error free
+or that access thereto will be continuous or uninterrupted.
+
+## No Waiver
+
+The NVD’s failure to exercise or enforce any right or provision of these Terms
+of Use shall not constitute waiver of such right or provision.