~tech/foss_alternatives: remove rules under headlines

tech/foss_alternatives.md

@@ -4,7 +4,6 @@ Please feel free to help out! I was hoping to finish off that list, then see if
 Quick list lest I forget: I also want to add <https://mycroft.ai> as an alexa/google home alt
 
 ## Instant Messaging and Communication 
----
 
 |Proprietary App|FOSS Alternative|License|
 |--|--|--|
@@ -15,7 +14,6 @@ Quick list lest I forget: I also want to add <https://mycroft.ai> as an alexa/go
 
 
 ## Search Engine 
----
 
 |Proprietary App|FOSS Alternative|License|
 |--|--|--|
@@ -23,7 +21,6 @@ Quick list lest I forget: I also want to add <https://mycroft.ai> as an alexa/go
 ||[searx](http://searx.me/)|AGPL 3.0|
 
 ## Social Media 
----
 
 |Proprietary App|FOSS Alternative|License|
 |--|--|--|
@@ -31,7 +28,6 @@ Quick list lest I forget: I also want to add <https://mycroft.ai> as an alexa/go
 |Twitter|[Mastodon](https://joinmastodon.org/)|GNU AGPLv3|
 
 ## Browsers
----
 
 |Proprietary App|FOSS Alternative|License|
 |--|--|--|
@@ -41,7 +37,6 @@ Quick list lest I forget: I also want to add <https://mycroft.ai> as an alexa/go
 ||[Epiphany](https://github.com/GNOME/epiphany)|GNU GPLv2|
 
 ## General Utilities
----
 
 |Proprietary App|FOSS Alternative|License|
 |--|--|--|