fix a couple typos

README.md

@@ -25,13 +25,13 @@ Contributions welcome! Please follow the [contributing guidelines](https://githu
 
 - [Ant Robotics](https://antrobotics.de/) development from Ecoterra bot
 - [Acorn Rover](https://github.com/Twisted-Fields) precision farming rover, Odrive, Python.
-- [Earth Rover](https://github.com/earthrover) Ag AGV ROS1) precision farming rover, 
+- [Earth Rover](https://github.com/earthrover) Ag AGV ROS1 precision farming rover 
 - [EcoTerra Bot](https://ecoterrabot.com/) Delta & Rover
 - [FarmBot](https://github.com/farmbot) -  Open source precision gardening project.
 - [Fields2Cover](https://github.com/Fields2Cover/Fields2Cover) - Robust and efficient coverage paths for autonomous agricultural vehicles.
 - [Romi project](https://media.romi-project.eu/documents/index.html) Europe-funded research project 
 - [ROS Agriculture](http://rosagriculture.org/) - Open Source community focusing on using Robot Operating System to empower farmers with robotics tools. 
-- [Weedinator](https://hackaday.io/project/53896-weedinator-2019) Line following /weeding robot
+- [Weedinator](https://hackaday.io/project/53896-weedinator-2019) Line following weeding robot
 
 ## Calculators
 
@@ -55,7 +55,7 @@ Contributions welcome! Please follow the [contributing guidelines](https://githu
 ## Datasets
 - [Growstuff](https://www.growstuff.org/crops) Record keeping & crop database, nice API
 - [CWFID](https://github.com/cwfid/dataset) - Dataset comprising field images, vegetation segmentation masks and crop/weed plant type annotations.
-- [TERRA REF](https://terraref.org) -> 1PB public domain high resolution sensor data from sorghum breeding trials ([data publication](https://doi.org/10.5061/dryad.4b8gtht99) with large files available on [globus.org at ncsa#terra-public](https://app.globus.org/file-manager?origin_id=e8feaff4-96cd-11ea-bf90-0e6cccbb0103&origin_path=%2F))
+- [TERRA REF](https://terraref.org) - 1PB public domain high resolution sensor data from sorghum breeding trials ([data publication](https://doi.org/10.5061/dryad.4b8gtht99) with large files available on [globus.org at ncsa#terra-public](https://app.globus.org/file-manager?origin_id=e8feaff4-96cd-11ea-bf90-0e6cccbb0103&origin_path=%2F))
 
 ## Data Standardization, Interoperability and APIs