publish libraries to avoid users to have to download them one by one

lib/SparkFun_BME280/README.md

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+SparkFun <PRODUCT NAME> Arduino Library
+========================================
+
+![SparkFun BME280 Breakout](https://github.com/sparkfun/SparkFun_BME280_Arduino_Library/blob/master/readme_picture.jpg)
+
+[*SparkFun BME280 (SEN-13676)*](https://www.sparkfun.com/products/13676)
+
+This library allows the user to:
+
+* Read pressure in Pa
+* Read temperature in C
+* Read humidity in %RH
+
+It also provides the following mathematical functions based from the above.
+
+* Read temperature in F
+* Read altitude in meters
+* Read altitude in feet
+
+Some examples include a circular buffer class for averaging.
+
+Repository Contents
+-------------------
+
+* **/examples** - Example sketches for the library (.ino). Run these from the Arduino IDE. 
+* **/extras** - Additional documentation for the user. These files are ignored by the IDE. 
+* **/src** - Source files for the library (.cpp, .h).
+* **keywords.txt** - Keywords from this library that will be highlighted in the Arduino IDE. 
+* **library.properties** - General library properties for the Arduino package manager. 
+
+Documentation
+--------------
+
+* **[Installing an Arduino Library Guide](https://learn.sparkfun.com/tutorials/installing-an-arduino-library)** - Basic information on how to install an Arduino library.
+* **[Product Repository](https://github.com/sparkfun/BME280-Breakout-Board)** - Main repository (including hardware files) for the SparkFun BME280 Breakout.
+* **[Hookup Guide](https://learn.sparkfun.com/tutorials/bme280-breakout-hookup-guide)** - Basic hookup guide for the SparkFun BME280 Breakout.
+
+Products that use this Library 
+---------------------------------
+
+* [*SEN-13676*](https://www.sparkfun.com/products/13676)
+
+Version History
+---------------
+
+* [V_1.0.0](https://github.com/sparkfun/SparkFun_BME280_Arduino_Library/tree/V_1.0.0) - Public release.
+* [V_1.1.0](https://github.com/sparkfun/SparkFun_BME280_Arduino_Library/tree/V_1.1.0) - Pulled request to add decimal precision to readFloatPressure() and readFloatHumidity().
+* [V_1.2.0](https://github.com/sparkfun/SparkFun_BME280_Arduino_Library/tree/V_1.2.0) - Added ESP32 architecture directives to modify begin operation.
+
+License Information
+-------------------
+
+This product is _**open source**_! 
+
+Please review the LICENSE.md file for license information. 
+
+If you have any questions or concerns on licensing, please contact techsupport@sparkfun.com.
+
+Distributed as-is; no warranty is given.
+
+- Your friends at SparkFun.